Written by: Subhasish Adhikary

Best AIR PURIFIERS in India: Purify the air around you

If you’re reading this article then you might have an idea about air purifiers but before we begin I’d like to provide some in-depth information about this topic to help you make the right decision while choosing the best air purifier for your home.

Let’s dive in the details.

With the blessings of technological advancements come to its curses too. Day by day we are advancing in science and technology whereas on the other hand as its side effects of pollution are taking a heavy toll on nature, air, water.

We think that closing all doors and windows in our home will help in prevent the toxic air outside to come in but sorry news flash, it’s not 100% effective at all. And also if someone in your family smokes or consumes tobacco then it’ll make it even worse.

For people with asthma and other respiratory ailments will suffer a lot simply because each time they inhale they take a lot of unhealthy air which is nothing sort of poison for them. This will eventually deteriorate their present condition further.

Hence, arises the need to purify the air in our homes especially if somebody in the house suffers from allergies or asthma. Purifying the air has become the need of the hour.


Update:

[I have updated with current & relevant information]

Deleted all the old outdated information, deleted some products which were not up to the mark & added their replacements which are currently the best performing.

Also, by consulting with few industry experts, I have included a buyer guide and added more starts to spread awareness about the real dangers of Air pollution in India.

Share with your family & friends, help in spreading this awareness. Read till the last. Thank you.


Table of Content show

Our verdict:

 Our choices forWinnersReasonLinks
Best AIR PURIFIERS in India: Purify the air around you 1Best Air PurifierCoway Professional Air-PurifierBest in class performance and low maintenance cost compare to peers.Check out
Best AIR PURIFIERS in India: Purify the air around you 2Runners upDyson Pure Cool Link TowerThe most powerful with multiple filters for advance air purificationCheck out
Best AIR PURIFIERS in India: Purify the air around you 3Best CADR Delivery & Area CoveragePhilips AC3256/20 Air PurifierThis product has the best CADR rating of 383 m3/hr among all. Area coverage of 500+ sq.ft.Check out

What is an Air Purifier?

Best AIR PURIFIERS in India: Purify the air around you 4

Air purifier, as the name suggests, is a device that purifies the air, which we breathe in.

In India, we all are aware of the ever-increasing amount of air pollution around us, for example, take the air quality of Delhi which is getting worse day by day people have to wear masks all the time and its adverse effects on our health.

An air purifier reduces the amount of dirt and germs in the air we breathe in and gives us a better quality of air & life.

Functions/Uses of an Air Purifier

The main function of an air purifier is to eliminate all the harmful and allergy-causing substances from the air by using its air filters.

The harmful substances are present in the air in the form of dust particles, smoke emitted from vehicles or other sources and pollen from plants, etc.

The air purifier machine takes the indoor air inside it by suction, it then cleans the air by using its different filters & methods, eliminating all the toxic substances, germs, bacteria, odors, etc., and throws out the filtered clean air for us to breath.

Types of Air Purifiers

There are five types of Air purifiers available in the market.

Different air purifiers use different air purification technologies. The majority uses either charcoal absorbents or mechanical filters.

The other techniques include electrostatic, ionizers, ozone and Ultra Violet air filters.

Adsorbent Purifiers

Absorbent purifiers are low cost filters made from activated charcoal. Activated charcoal are used for its effectiveness in trapping odors & chemical gases from the air.

Activated charcoal filters can be used with HEPA filters to trap impurities in the air like dust, molds, bacteria, pet hair, etc.

They can also absorb VOCs which HEPA & other filters cannot d much about them.

UV Light Purifiers

We know that ultraviolet rays are germicidal in nature, and in the air purifying process they do the same job.

A UV light is fitted inside the purifying device, the air goes in and passed through a ray of UV light, this helps in killing microbes, bacteria and other molds in the air.

The UV light denatures the DNA, rendering them inactive in case of viruses and killing the airborne bacteria.

The process that involved here is called UVGI, i.e. ultraviolet germicidal irradiation. Read more about it here.

Ionizers, Ozone Generators & Electrostatic Filters

These are less widely used air purification methods. Ionizers, Ozone & Electrostatic filters are different methods but works on the same principle.

The particles in the air have negative charge in them, and these ionizers, ozone generators & electrostatic filters have either negative or positive charge, they charge the particles floating in the air.

Now the charge particles are bought down & are settled on the ground thus removing them from the indoor air.

Electrostatic filters have one advantage over the other two, in case of ionizers & ozone generators the charged particles are left on the ground/floor that you need to manually clean.

Whereas EFs collect the particles inside the purifier only, this is why electrostatic filters are widely used among these three.

HEPA purifiers

If you’re researching these devices, then you must have chrome across this acronym HEPA, the full form is high-efficiency particulate air.

HEPA purifiers work by applying two different mechanisms at the same time, it has two filters, outer & inner. The outer filter’s function is to trap the bigger dust particles & the outer filter to trap smaller particles in the air.

The filters are generally made fiber glass material, HEPA filters remove up to 99.7% of the dust particles.

One disadvantage of HEPA filter is that they cannot trap viruses, odors and chemical substances.

Buy the air purifier that has HEPA filters, as those filters are certified by medical bodies & other institutions..

How does air purifiers work?

The air purifier work in a very simple way: intake the air inside room, filter it and replace the populated indoor air with the clean air. 

As you know that these devices has filters, they first intake the indoor air then using their HEPA filters it gets rid of allergens, dust particles, bacteria, and other pollutants floating in the air.

As these unwanted pollutants gets trapped inside the air purifier’s filter, you get clean, fresh breathable air in your room circulated back by the device.

In case of ozone filters, they don’t remove or trap the particles in the air, they thus neutralizes them so that they are no longer pose any threat. But there is a drawback to this process as it may emit ozone particles.

This process is carried out in three stages in most of the air purifiers:

The working can be classified in to passive purification, active purification, and combination of both active purification + passive purification.

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How does air purifiers work?

Stage One: Pre Filters

Pre-filters are the first line of defense for any device, in this stage the big particles like pm2, dust, mold, etc. are filtered out by the prefilters. Prefilter puts less strain on the rest of the filters thus increasing their life span.

Stage Two: Deodorization Filter

As I’ve mentioned earlier that nowadays many air purifiers can effectively filter out VOC i.e. volatile organic compound from the air. And this deodorization filers work is to filter out gases and VOC from indoor air.

The activated carbon filter effectively absorbs the gas and compounds like ammonia and formaldehyde floating in the air. 

Stage Three: HEPA Filters

HEPA filters are used to trap the smallest suspended particles in the air that escapes the first to stages of filtration process. HEPA filter is known to trap particles as small as 0.0003 millimeter.

Apart from these crucial steps, some filters also use:

UV light to kill or neutralize living organisms like bacteria, mold, fungi and germs suspended in the air. But they can’t kill virus but can make them inactive, so that it poses to serious threat to health.

Negative ion air purification method involves releasing negative ions to capture pollutants in the air, then they fall on the surface like floor and as a result you get fresh air to breath.

Advantages and disadvantages of using an air purifier

One disadvantage of an air purifier is its price is too high. (its prices are likely to fall, as the demand rises.)

A minor disadvantage is that the collection plates in an electronic air purifier needs regular cleaning.

The advantage of electronic air purifiers is easy to install and does not involve complex wiring.

They consume less power and hence less electric charges. Their running noise is also negligible.

Pet dander and hair pollutants: Air purification devices also helps in getting rid of pet dander and pet hair pollulants from the indoor air.

Pet dander causes allergy and asthama problems in humans. Thus saving you and your family from severe health issues!

Popular air purifier brands in India as of 2021

  • Dyson
  • Philips
  • Honeywell
  • Coway
  • Sharp
  • Mi
  • Kent
  • MoonBow
  • Voltas
  • Carrier
  • Bluestar
  • Havells

Why should you buy an Air Purifier?

Best AIR PURIFIERS in India: Purify the air around you 6
Air Pollution due to Industries in India

Even the air is polluted so badly in India that we don’t even realize that we breathe in dust and germs.

Unfortunately, you can’t purify the outdoor air but on the other way, you can improve the quality of the indoor air.

I saw many people are still debating, is it worth it to buy an air purifier?

I mean how can investing in a device like air purifier can be a waste of money?

It has the ability to clean your indoor air by eliminating all the suspended particles, microbes and toxic substances that are detrimental to you & your families health.

FYI: Do you know that indoor air quality in India is up to 10 times more polluted than the air outside? Sources NCBI.

So by eliminating all the polluted air it certainly prevents your family members for diseases that are caused by air pollution, thus indirectly saving you a lot of money.

FYI: Air pollution in India cuts off 5.2 years from your life. Source.

If any of your family member has respiratory diseases like allergy & asthma, top health officials in India and abroad recommends the use of air purifiers to improve the air quality at home especially in cities like Delhi, Calcutta, Punjab, etc. places where air quality is bad to severe.

Our selection methodology as follows

  • We only took in to consideration products from reliable brands only
  • Thoroughly analyzed customer feedback in real time to know more about the actual performance of the products.
  • Emailed most of the manufacturer to better understand their product and asked for their comments.[pending]
  • We’ve put special emphasis on CADR & ACH ratings of the products, choose only the best performing ones.
  • Products with the lowest service cost, availability of spares and cost of the filters.
  • We’ve mentioned products having different types of filters other than HEPA, some has  multi filters.
  • Amount of noise each one makes while running, tried our best in selecting the lowest noise producers that shall not bother users.

Don’t forget to check out the buyer guide at the end of this article.

Top 12 Best Air Purifier in India Reviews & Comparison

In this article, we will discuss some of the best air purifiers in India for 2021. Check them out and select one according to your requirements.

Serial No.Product nameCADRCoverage [sq.ft]
1Honeywell Air Touch A5250 m3/hr350
2Philips 1000 Series AC1215/20270 m3/hr400
3Mi Air Purifier 3380 m3/hr484
4Coway Professional Air-Purifier380 m3/hr361
5Philips AC3256/20 Air Purifier383 m3/hr505
6Hindware Moonbow AP-A8400UIN215 m3/hr400
7Airspa Tms 16 Hepa Air Purifier180 m3/hr350
8Dyson Pure Cool Link Tower70 m3/hr400
9Philips High Efficiency Air Purifier AC2887333 m3/hour410
10SHARP-Air Purifier for Home & Office168 m3/hr160
11Honeywell HAC25M1201W250 m3/hr350
12TruSens Z-2000 Air Purifierunknown375

Honeywell Air Touch A5 53-Watt Room Air Purifier

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Honeywell a brand that needs no introduction. Honeywell is quite a popular Fortune 500 company, manufacturing different consumer goods.

They manufacture from electronics to aerospace equipment.

This device is the best selling air purifier on Amazon India right now. This has a Clean Air Delivery Rate (CADR) of 250 m3/hr. And has High-Efficiency Particulate Arrestant (HEPA) filter.

This Honeywell air purifier features:-

3D Air Flow with Air vents on both sides and at the bottom of the purifier which makes sure that enhanced suction of polluted air happens and also compels pure air to reach every nook and corner of the room.

Cleans the air of the room very swiftly in just 10 minutes. Does not consume high cost since the power consumption is low. It also has a special child lock feature which prevents toddlers from being able to control it.

One more facility is that Honeywell has its services in 25 major cities across India so if you belong to any of these 25 cities then surely servicing will not be a problem.

Available in two color variants: Classic white and Champagne. One of the best sellers under 15k INR.

Pros:

  • Real-time PM2.5 meter
  • Three stage advanced filtration system with HiSiv.
  • Ozone Free
  • Sleep mode & easy to clean

Cons:

  • Durability Issues
  • AQI sensor accuracy

To buy the product or know more about it, click on the link given below:-

Best AIR PURIFIERS in India: Purify the air around you 8

Philips 1000 Series AC1215/20 Air Purifier

Best AIR PURIFIERS in India: Purify the air around you 9

This is the best air purifier you can buy under Rs 10,000 in India. It has some really cool features like Night Sense Auto Mode, Smart light control, Allergen auto mode, Healthy Air Protect Alert, etc.

The air purifier by Philips features:-

Healthy air throughout the day and energizes the aura of the room.

It is ideal for small to medium rooms such as your bedroom (up to 63m2).

It does clean up to 99.97% of particles that pass through the filter. Pollutants, allergens, gases, odors are reduced and the air around is optimized. 

It has three definite auto modes: General, Allergen, and NightSense.

Consists of four manual settings which include turbo speed, low energy consumption and also the child lock system that prevents the settings from being changed by the kids without having the proper knowledge of it. Vitashield IPS are present with HEPA filter series 1.

Pros:

  • Coverage 400 square feet
  • CADR of 270 m3/hr
  • Purifiers room under 12 minutes
  • 4 Stage Filtration process
  • Auto-Purification Mode

Cons:

  • Noise level
  • Durability

It is the best-selling air purifier for home on Amazon India. To purchase the product or know more about it, click on the link given below:

Best AIR PURIFIERS in India: Purify the air around you 8

Also Read: Best Aroma Oil Diffusers & Humidifiers


Mi Air Purifier 3 with True HEPA Filter

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After dominating the budgeted smartphone category seems like MI looking to dominate the air purifiers under Rs 15,000 categories with this model.

This Mi Air Purifier 3 can Purify Room in Just 10 mins*. How cool is that?

Mi powered by Xiaomi is a very popular company.

This air purifier by Mi features:- It has OLED display which enables you to check PM2.5 levels in the room and in a way tracks how clean your air is.

It displays the temperature and humidity level.

Mi Air Purifier 3 purifies the air around and makes it odor-free and allergen-free air.

It has Automatic Brightness Adjustment which sets the brightness of light at night according to the ambiance.

It has High-Precision Laser Sensor, which detects particles as small as 0.3μm and instantly displays it on the OLED screen. Purifies the air of the room with a high CADR of 380m³/h.

There is 3-layer filtration for maximum purification.

Efficient Tower-Structure Design and also has Smart Control with the Mi Home App. Silence technology and energy-efficient.

Pros:

  • Filtration efficiency of 99.97%
  • High CADR of 380 m3/hr
  • Coverage area: 484 square foot
  • OLED display

Cons:

  • Low quality filter
  • Small display

To know more about this product click the link below:

Best AIR PURIFIERS in India: Purify the air around you 8

Coway Professional Air-Purifier

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Coway Professional Air-Purifier

Coway Professional Air-Purifier‘s filter is power by advanced HEPA (High-Efficiency Particulate Arrestor) technology.

Furthermore, it contains inbuilt ionizer, improves the freshness of the air and keeps air in your home fresh at all times.

Coway is the No.1 Brand in the world for Air Purifiers.

It comes anti-flu true HEPA filter technology, it can purify the air of a 350 sq meter area of space. On doubt, it is the most rated product on Amazon India.

Pros:

  • Filtration efficiency of 99.97%
  • CADR of 380 m3/hr
  • COVERAGE AREA: 361 sq. ft
  • Easy maintenance

Cons:

  • Not much

It is considered to be one of the best-rated air purifiers in India in 2021. To buy this product, click on the link given below:-

Best AIR PURIFIERS in India: Purify the air around you 8

Philips AC3256/20 Air Purifier

Best AIR PURIFIERS in India: Purify the air around you 15

This is another model from Philips which is much more expensive than the others. With price comes more features as well.

This model has VitaShield IPS technology which can naturally remove ultra-fine particles that are as small as 0.02um and 99.97% of common airborne allergens effectively over the long term while the Aerasense technology ensures one by displaying real-time indoor air quality.

Advanced NanoProtect technology that consists of four different types of filters delivers all-around protection with special AL auto mode which is more effective for allergen removal.

Gives a long-lasting usage time along with superior quality purification that can be applied to a maximum 505 sq.m. room.

Has real-time PM2.5 feedback and 4 color AQI light.

There is healthy air protect alert for filter lifetime including accuracy.

Been certified and tested by AHAM, ECARF, and Airmid.

Consists of sensor touch UI with an enormous numerical display. It is amongst the top ten air purifiers in India.

And also the best air purifier for home & office in India under 30000 INR.

Pros:

  • Filtration efficiency of 99.97%
  • CADR of 383 m3/hr
  • NanoProtect HEPA Filter
  • COVERAGE AREA: 505 sq. ft
  • VitaShield IPS technology

Cons:

  • Noise Level

To purchase or learn more about the product, click on the link given below:-

Best AIR PURIFIERS in India: Purify the air around you 8

Hindware Moonbow AP-A8400UIN 55-Watt Air Purifier

Best AIR PURIFIERS in India: Purify the air around you 17

Hindware is a renowned Indian company now for a long time.

This purifier by Hindware features:

Moonbow Air Purifier Filters and UV Lamp, Pre-filter which captures larger household specks of dirt like hair strands thus increasing the lifespan of advanced purification filters.

Has activated carbon filters that refresh the air by removing all kinds of odors, harmful gases and Volatile Organic Compounds (VOC’s) from your living space.

Pros:

  • Coverage 400 square feet
  • CADR of 215 m3/hr
  • Puri 5 Technology
  • Multi-level Fan Speed Setting

Cons:

  • Noise level
  • Maintenance

It is one of the best-selling & top-rated air purifiers to buy online from Flipkart. To buy or learn more about the product, click on the link given below:-

Best AIR PURIFIERS in India: Purify the air around you 8

Airspa Tms 16 Hepa Air Purifier

Airspa Tms 16 Hepa Air Purifier

Airspa Tms 16 Hepa Air Purifier comes with Unique 6 Stage Filtration. The Airspa air cleaner cleans indoor air, helping to keep it pollutant and microbe-free.

  • Clean Air Delivery Rate: 180 M3/Hr
  • Area Covered: 350 Sq. Ft.
  • Digital Display
  • Remote Controlled
  • Best In Class 6-Stage Filtration System
  • Smart UV & Anion Mode.
  • Odor Sensor

Pros:

  • CADR of 180 m3/hr
  • Pre Filter & Cold Catalyst Filter
  • 6 stage filtration
  • COVERAGE AREA: 350 sq. ft
  • Negative Ionizer

Cons:

  • CADR of 180 m3/hr
Best AIR PURIFIERS in India: Purify the air around you 8

Also Read: BEST WATER PURIFIERS in India

Dyson Pure Cool Link Tower WiFi-Enabled Air Purifier

Best AIR PURIFIERS in India: Purify the air around you 20

Dyson is a good and reliable company in today’s electronic market which is also very popular. This model consists of H.E.P.A filter, deodorization filter and humidifying filter.

Its coverage area: 282 sq. ft. / 26 sq. mtrs. It is suitable for a bedroom/living room of medium size. It can remove as small as PM 0.1 from the air.

There is Air pollution, filter replacement, and Humidity level indicator; along with Eco-friendly mode.

Gives 3 years of filter life (H.E.P.A and deodorization filter), vacuum-sealed Glass HEPA filter removes and captures the pollutants in the filter only…

It can be operated using smart devices like Alexa speakers.

The manufacturer also provides a one-year warranty on the product. It is one of the top air purifiers companies in India. It is excellent for bedroom.

Pros:

  • Removes as small as PM 0.1
  • H13 HEPA Filter
  • 360° Glass HEPA Filter
  • Tris-coated Activated Carbon Filter
  • Dual purification mode

Cons:

  • Price
  • CADR of 70 m3/hr

To purchase the product or know more about it, click on the link given below:-

Best AIR PURIFIERS in India: Purify the air around you 8

Philips High Efficiency Air Purifier AC2887

Best AIR PURIFIERS in India: Purify the air around you 22
Philips High Efficiency Air Purifier AC2887 with Vitashield Intelligent Purification

This is the third air purifier from Philips that I’m mentioning in this article, you can image how good its electronic products are.

This 2000 Series AC2887 model by Philips features:-

Vitashield intelligent purification that captures up to 99.7% of dust, allergens, smoke, pet dander and pollen.

It has one of the highest CADR of 333 m3/hour, which can purify the air of your master bedroom with 10-15 minutes.

There is a special carbon-coated odor filter that removes bad smell from the room and gives you fresh air to breathe.

Smart dust and PM2.5 sensor continuously watch on pollution levels and indicates the form of a bright 3 color LED.

Pros:

  • Vitashield Intelligent Purification
  • High CADR of 333 m3/hour
  • Purifies a standard room in 10-15 minutes
  • AeraSense monitors
  • Coverage up to 410 sq. ft.

Cons:

  • Reading of AQI is unreliable.

Then it has auto fan mode and anti pollen mode. best air purifier for smoke & allergies. To purchase this product, click on the link given below:-

Best AIR PURIFIERS in India: Purify the air around you 8

SHARP-Air Purifier for Home & Office

This model by Sharp features:- a compact and sleek design which makes it suit with its immediate surroundings. Presence of Plasmacluster technology with HEPA filter & Pre-FilterMesh. Gives coverage of area 160 sq.ft.

It is very efficient in its function and its clean air delivery rate is 168 cu.m/hr. Combined active and passive purification system which is much better than only filtration systems.

It can clear a 150 sq meter of space 5 times in 1 hour and does not leaves behind any harmful gases and is very much safe for children, certified by IEC, Japan.

As stated by the company itself this air purifier is excellent for home & office use.

Pros:

  • Dust & Odour sensor
  • H14 HEPA Filter
  • HAZE mode
  • Japanese technologies
  • Dual purification mode

Cons:

  • No smart love connectivity

To purchase the product click on the link given below:-

Best AIR PURIFIERS in India: Purify the air around you 8

Honeywell HAC25M1201W Air Purifier For Room

Best AIR PURIFIERS in India: Purify the air around you 25
Honeywell HAC25M1201W 53-Watt Air Purifier For Room

Honeywell HAC25M1201W air purifier for room has a 3-Stage Purification covers 350 sq. ft., CADR of 250 m3/hr with HEPA Air Purifier comes with Remote Control, Air Quality Odor Sensor, etc.

This air purifier features:- Fan Speed in 4 different modes namely: – Sleep, Low, Medium & High. Then there is a filter change indicator, Timer – 1 to 8 hours, Noise Level – Up to 63 dB.

The filters used are HEPA & activated charcoal, the combination of these two filters removes dust particles, allergens, VOCs and the bad odor from indoor air.

The manufacturer provides a 12-month warranty. It has 3D air flow along with child feature lock. This one of the most energy efficient products consumes electricity less than 3 CFL bulbs. Amazon prices it at Rs 6594.

Pros:

  • CADR of 250 m3/hr
  • Washable pre-filter
  • Ozone Free
  • COVERAGE AREA: 350 sq. ft
  • Dual Airflow

Cons:

  • Noise Level
  • Durability

To buy or learn more, click on the link given below:-

Best AIR PURIFIERS in India: Purify the air around you 8

Also Read: Best Smart Gadgets for Home


TruSens Z-2000 Air Purifier

Best AIR PURIFIERS in India: Purify the air around you 27

This purifier senses allergens, gibes real-time feedback, uses PureDirect Technology.

There is dual airflow and Ultraviolet sterilization destroys germs and viruses that can build up on the filter, preventing re-circulation of live germs.

Gives a total room coverage and detailed LED display. The manufacturer gives a two-year warranty as well.

This model indeed comes with a lot of advanced features that will help to purify indoor air effectively.

Pros:

  • Filtration efficiency of 99.97%
  • SensorPod air quality readings
  • 360-degree DuPont filtration
  • COVERAGE AREA: 375 sq. ft
  • Dual Airflow

Cons:

  • Noise Level

To purchase or learn more, click on the link given below:-

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If you’re not convinced then check below:

Click here to check the list of Purifiers From Amazon

//OR//

Click here to check the list of Purifiers From Flipkart

How to choose the perfect air purifier for home? – Quick Buyer Guide:

One must keep in mind certain things before buying an air purifier:-

Filter Type

First, one must decide the type of air purifier one wants to buy. There are two kinds of air purifiers:- HEPA Filter and Carbon Filter.

HEPA filter targets particles even finer than 0.3 microns (divide a hair strand into 240 pieces and the width of one such piece is equivalent to 0.3 microns) and HEPA filters do not remove odor whereas Activated Carbon filters remove odor along with its normal functions.

Ideal air purifier is one with the combination of both the filters, they are expensive but worth every penny.

Room size

Always can calculate the size of the room where you want it to be installed, because each air purifier has its own effective room coverage in which it works ideally.

Filter Replacement

This falls under maintenance you need to change the filters of the purifiers periodically, though the actual frequency depends on the air quality of the city or town you live in. 

For example, in Delhi you’ll need to change the filters weekly basis as the air pollution is severe there.

But typically, an air filter lasts minimum up to six months or more, one must go through the durability claim of the air purifier.

So before buying have a quick look at the price of the filters of the product that you’re going to buy.

Noise level

This is a not so important aspect but you should consider if you’re planning to using it while sleeping at night. Then you should check the noise level of the device, it should not pamper your sleep.

The noise mainly comes from the fans that are installed inside.

CADR Rating

Another vital thing to check while narrowing down the ideal product. CADR stands for Clean Air Delivery Rate, which indicated that long will it take for the device to purifier the total air in the room. It is calculated in cube per minute.

Therefore, CADR the more the better. Anything between 350-450 is a good CADR rating.

ACH – Air Changes Per Hour

ACH or air changes per hour of an air purifier is a mechanical rating that signifies how much volumetric air it can take in one hour or in simpler terms how many times it can purifier the air of a specific room.

Best AIR PURIFIERS in India: Purify the air around you 29
Air changes per hour formula

Suppose if a product has ACH of 3, that means it’ll purify the air in that room thrice in one hour.

Air Quality Sensors

The dust sensor to air-quality monitor should also be verified along with several fan speeds.

Some advanced & high-end air purifiers have air quality sensors that helps in detecting the present air quality in a room.

By accessing the quality of indoor air, the devices can act accordingly like if the quality is severe then it’ll run at maximum efficiency, if moderate then it’ll run at power saving mode and if the Quality is good then it will auto shutdown until the air quality degrades.

How to select the right air purifier for your room?

First you need to measure the size of the room where you want to keep this or use this air Purifier. A simple breadth x width of the room will reveal it’s total size in square foot.

Second step is to go through the specification of the product, manufacturers mentions the active cover of the devices then you can check whether it fit the dimension or not.

Third, check the CADR & ACH ratings of the product, it means how much time it’ll take to filter the air and second one indicates how many times it can purify the indoor air in one hour.


Who should buy it?

Anyone who is worried about the health of their family members or is sensitive to outdoor polluted air.

Investing in an air purifier is not at all a bad investment instead you’re keeping your family members especially people with breathing problems, asthma and allergies.

You may be surprised to know that the quality of indoor air is worse than what’s outside, if you’re worried about the AQI of Indian cities, then wonder the condition inside your home or office.

Air purification system  help in improving the indoor air quality by eliminating the suspended particles, aerosols, VOC, molds, bacteria present in the air.

It uses advances filters to trap them and throw back clean and fresh air to breath.

After many tests and research it is seen that these devices can actually help in improving the air quality inside home and saves people for many airborne disease and disorders.

Hope I’m able to make you understand the importance of having an air purification device at home in India.

FYI: 22 Indian cities are there in the list of 30 most polluted cites of the world. Source.

Some common air pollutants:

There six common air pollutants in the air as stated by several government agencies, they are:

  • Carbon monoxide
  • Lead
  • Nitrogen dioxide
  • Ozone
  • Particles
  • Sulfur dioxide

List of most polluted cities in India

  • Gurugram
  • Ghaziabad
  • Faisalabad
  • Bhiwandi
  • Noida
  • Patna
  • Lucknow
  • Delhi
  • Jodhpur
  • Muzaffarpur
  • Varanasi
  • Moradabad
  • Agra
  • Gaya
  • Jind
  • Greater Noida
  • Kanpur

Some statistics related to air purifiers:

Check some fascination statistics related to air purifiers. With ever-increasing air popular the sales of these devices is increasing over 10% YoY on average.

The global air purification manufacturing has a market value of approx 22.5 Billion USD. Source.

Best AIR PURIFIERS in India: Purify the air around you 30

Some frequently asked questions:

Which brand air purifier is best?

Dyson, Honeywell, Philips are to name a few brands whose air purifiers you trust. They manufacture air purifier devices with the latest technology developed by their R&D team. 

Honeywell & Philips air purifiers are priced reasonably well withing the reach of middle income families their price starts from 6999/- only where Dyson makes premium quality filter-less products whose price starts from 25900/- INR in India.

Other notable brands in India include Xiaomi, Sharp, Carrier & Blue star, these are well established companies in the electronic household appliances category and the prices of their products falls in the budget segment that every family in India can afford easily.

What is the best air purifier in 2021?

Philips AC3256/20 under 25000INR & Coway Professional under 15000 are the best air purifiers in India that you can buy in India in 2021.

What is the best location for an air purifier?

The best location for an air purifier is where it can access the indoor air without any hindrance, don’t place it under selves or corner nor keep anything in front of it that can block the inflow/outflow of air.

Which air purifiers are safe?

Mechanical air purifiers are the safest & most effective ones. Ionizing, Ozone generators & electrostatic filters are said to have negative effect on human health.

Which is the best room air purifier for NCR, Delhi?

Philips AC3256/20 and Dyson Pure Cool Air Purifier is the best room air purifier for NCR, Delhi. They can remove PM 2.5 particles along with 99.95 percent of all harmful airborne organism, VOCs, etc. They have 3-4 different types of filters for advance purification.

How effective are home air purifiers?

Yes, absolutely. Home air purifiers are very much effective in cleaning the air inside and making it breathable.

But it has it’s only limitation as it cannot purifier soft air particles that rests on surfaces of furniture and other things.

Also, the effectiveness of these devices varies from person to person. People with allergy, asthma and other respiratory ailments can benefit very much from air purifiers.

Is it OK to leave air purifier on all night?

Don’t worry about it, you can safely use it all night long. Air purification is a long & continuous process. It’ll function as it should do as quality of air changes over time it will run accordingly. Some devices have auto shutdown function it the air quality sensors feels that air inside is good.

How long does it take an air purifier to clean a room?

An air purifier should take between 35 minutes to up to 3 hours to purify the indoor air depending upon the size of the concerned room.

That’s not it, several other vital factors also contribute to how quickly will it clean the air  like ACH, filters, fan settings, etc. Do air purifiers use a lot of electricity?

How much does it cost to run an air purifier all day?

In most scenario an air purifier of 38W running for 5 hours per day will consume approx 12 units of electricity per month.

So you can see that these devices consumers less electricity tan most of the essential home appliances like refrigerators, air conditioner and even televisions.

This may change depending upon the power consumption of the air purifier and running time.


Conclusion

After going through so many air cleaners, there is a certain model that has impressed me the most.

The technology they use, HEPA filters and CADR, based on that you can go for these Philips AC3256/20, and Coway Professional air purifiers.

Thus, we have spoken about the top 12 best air purifiers to buy in India 2021 now it is your duty to check and verify the one you want to buy according to your requirements.

Good luck choosing and making the air around you fresh and sweet.

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Subhasish Adhikary

I'm constantly in search of the latest gadgets & technology news that I can share with you. In my meantime, I blog on topics ranging from digital marketing, online business, startups to tech gadgets.

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