7 Best Air Purifiers In India

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Thanks to the rampant air pollution, air purifiers have become a necessity rather than a luxury for us city dwellers.

I am sure that the numerous brands, models and features of air purifiers available in the market would overwhelm you to the extent that you are unable to decide which one to buy. That is why we have formed this guide of best air purifiers in India.

In this article, we have shortlisted only the best. These are the air purifiers that you would want if your home is at Delhi, Gwalior, Allahabad, Patna or such heavily polluted cities.
They have best specifications which include high CADR (clean air delivery rate), best HEPA filters and are backed by strong, reputed and reliable manufacturers who are known for selling high quality appliances. We have also considered user reviews of these air purifiers to ensure that the device functions as per the manufacturer’s specifications and claims.

So, now, let us get started.

The first and foremost step that you have to do when you buy an air purifier is measure up the sq. ft. area of the room where you intend to keep the air purifier. Then, you can check our CADR calculator to determine what ought to be the CADR of the air purifier for the room. For best performance, use one air purifier per room, just like how you would use an AC. If you open the doors and try sharing an air purifier between 2 or more rooms, it won’t be quite effective in purifying the air.

Note- If you have just begun your search for the best air purifier for your home, then we would suggest you to read this buyer’s guide in order to familiarize with different types of air purifiers, different filter systems and factors to consider while choosing an air purifier.

Manufacturers of each of the air purifiers in the below list claim that their purifiers eradicate allergens, capture virus, bacteria, gas, smoke, odour etc. Basically, that is what carbon and HEPA filter together does. Hence, we have not mentioned this separately for each.

A term that you will frequent come across in this article is ACH rating. ACH refers to air change per hour. It means the number of times air in a room of given size is changed to purified air by the air purifier. AHAM ( American Home Appliances Manufacturers) recommend using air purifiers of ACH higher than 4 for asthma/allergy sufferers and for homes located in heavily polluted cities. Read our article on CADR-ACH to know more.

Which are the Best Air Purifiers In India?

Best Air Purifiers In India 

Honeywell Air Touch i8 42-Watt Air Purifier

CADR: 300m3/hr

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Performance: Honeywell air purifiers generally are superior in performance.
The company is known to supply higher grade version of its air purifiers for NASA space stations. Obviously, we can’t expect that kind of superior performance in their domestic air purifiers. But still, Honeywell has a reputation of selling quality products.Customers have rated their Air Touch i8 as highly satisfactory and it is one of the Amazon choice products indicating best quality and price.

The Airtouch i8 is available in 2 colours—white and champagne. The air purifier employs three stage filtration system that consist of a prefilter, HiSiv and HEPA filter.

While all air purifiers use activated carbon for absorbing VOCs, formaldehyde, ozone and other odours, Honeywell uses HiSiv.

best air purifier India

So, what is HiSiv? HiSiv stands for high-silica hydrophobic molecular sieve, which is a high efficiency absorbing agent that is used for various industrial applications that require an advanced filtration system. The molecular sieve of silica has empty space that are consistent in diameter. So, it can absorb molecules of selective dimension inside the crystal even when the contaminant is low in concentration. Thus, HiSiv formula is customized to be able to absorb Formaldehyde, ammonia, ozone, and all types of odours and VOC. In order to prevent secondary pollution due to the contaminants, CTOX catalyst is added in the crystal to decompose the absorbed contaminants.

The HEPA filter used in the air purifier is of H11 grade. It is capable of absorbing up to 99% of particulate matter larger than 0.3 micron. This might be the only aspect that is a bit lacking for Honeywell purifiers. Sharp and Atlanta uses H14 and H13 grade HEPA filters respectively, which are more efficient in filtering impurities and contaminants larger than 0.3 microns.

Now, let us take a look at the air flow rate.

best air purifier India

Honeywell Air Touch i8 has a CADR of 300 m3/hr. The company recommends using it in a room of size less than 387 sq. ft. However, the ACH rating in that case would be about 3. If you want to achieve an ACH rating of 4 or more, we would recommend you to use it in a room of size less than 295 sq. ft.

Just like the Allergen mode in Philips AC 3256/20, Honeywell Air Touch i8 also has an intelligent auto mode that steps up the fan speed and works to bring restore the air purity. It also has real-time display of PM 2.5 level and tri-color LED indicator of air purity too.

Other useful features

  • Low Noise
  • Child Lock
  • Filter Replacement Indicator

Maintenance: Filters of Honeywell air purifiers are long lasting with 3000-hour life. So, if you use it for about 8 hours daily, you can use it for more than a year.  Its replacement cost comes to about Rs. 4300.

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Philips 3000 Series AC3256/20 60-Watt AeraSense Air Purifier

CADR: 367 m3/hr

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Performance: With sophisticated design, advanced features and high air purifying efficiency, AC3256/20 is one of the best air purifiers from Philips.

Talking about the filtration system, AC 3256/20 has a 3 stage filtration system that consists of a pre-filter, activated carbon filter and a HEPA filter.

The activated carbon filter has a high grade honeycomb structure that can be expanded to about the size of 20 football fields and has high absorption capacity for VOCs ( volatile organic compounds).

best air purifier India

The HEPA filter used in AC3256 is thicker and anti-bacterial coated.  When you read HEPA layer 1 and HEPA layer 2 in the product description given in Amazon, you might think it is 2 layers of HEPA filter. But when you read carefully, you can understand it is just an anti-bacterial coating—something that many other brands offer.

Now, let us take a look at the air flow rate.

AC3256/20 has a smoke CADR of 367 m3/hr and pollen CADR of 430m3/hr—making it apt for large bedrooms and living rooms.

Though manufacturer recommends using it for room of size 95m2, if used in such a large room, the ACH (air change per hour) rating would be just 1.41. To maintain ACH of 4 and above, we recommend using it for rooms of size less than 360 sq. ft.

As the air purifier features an aerodynamic vortex design, it has good efficiency in sucking in impure air.

best air purifier India

A very useful feature of AC3256/20 is the allergen mode. When you switch it on, the air purifier gets in to a hyper mode you can say. It looks out for any fall in air quality and upon detecting it, the turbo fan is switched on automatically to restore the air quality. Once the air quality reaches back to the optimal level, the turbo fan is switched off and the fan runs at a lower speed to maintain the air quality.

Other useful features

  • Low noise of just 33 decibels
  • 24 hour timer
  • Child Lock
  • Handle for easy portability
  • Digital touch panel control
  • Light control for switching on and off
  • 5 speed turbo mode
  • Filter replacement indicator

Maintenance: As with all other air purifiers, the pre-filter can be cleaned with a dry brush or vacuum cleaner. The activated carbon filter has a life of 12 months and HEPA filter a life of up to 24 months depending on level of usage and pollution level in your city.

The HEPA filter costs about Rs. 3400 and activated carbon filter costs about Rs. 2100. You can buy them online through Amazon or directly from Philips website. As Philips air purifiers use DIY system, you can change the filters on your own without having to depend on a technician.

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Coway Sleek Pro AP-1009 Air Purifier  

CADR: 303 m3/hr
best air purifier in India
Coway air purifiers were launched in India in late 2018. They have been garnering rave reviews from users. This doesn’t really come as a surprise as their air purifiers are quite popular in the U.S too.
The Coway Sleek Pro AP-1009 air purifier comes with 3 layer filtration like most other air purifiers in the market. The first stage is a pre-filter to capture dust, pet hair and other larger particulate matter.
The next stage is the urethane carbon filter that absorbs up to 98% odor and Volatile organic compounds ( VOCs) like benzene, toluene, formaldehyde etc.
This layer is essentially urethane foam substrate which has powdered carbon impregnated on it. This allows better air permeability, even at low pressure.
The final stage is a True HEPA filter with 99.97% efficiency to capture particulate matter larger than 0.3 micron. This includes various allergens and  pollen, dust found indoors.
Now, let us take a look at the air flow rate of the air purifier. With CADR of 303 m3/hr, it is almost at par with the air purifier from Honeywell. This makes it quite apt for rooms of size about 300 Sq. Ft.
Perhaps the most distinguishing feature of Coway air purifiers is the extended air filter life. Be it the urethane carbon filter or the HEPA filter, both have life of about 8500 hours, which is the longest in market. Comparatively, other air purifiers have filter life of about 3000-4500 hours. Thus, in the long run, cost of owning a Coway air purifier is much lesser than others.
Other useful features of the air purifier include
– 4 level Color coded pollution indicator.  With red being highly polluted to blue being clean.
– Filter change indicator alerting when it is time to change the deodorizing and HEPA filter.
– 4 level air speed
As mentioned earlier, the filters of Coway air purifiers have a long life of 8500 hours. Once the indicator alerts time for filter change, you can buy the filters online and change them on your own. The urethane carbon filter costs about Rs. 1500, while the HEPA filter costs about Rs. 3000/-
Variants: If you need an air purifier for a smaller room of about 250 Sq. Ft, you can opt for Coway AP 0509 air purifier.

Philips 2000 Series Aerasense AC2887/20 Air Purifier

CADR: 334 m3/hr

best air purifier India

Performance: Being one of the newer models from Philips, AC 2887/20 features thicker nano protect True HEPA filter, higher CADR and memory function which switches on back to the pre-set mode after a power failure.

The nano protect True HEPA filter is said to have longer life of 24 months under normal conditions and the filter has a higher efficiency of capturing up to 99.97% of particulate matter larger than 0.3 microns.

The activated carbon filter used in Philips AC 2887/20 also has a high-grade honeycomb structure which when expanded stretches to the size of 43 football courts—indicating high efficiency in purifying VOCs (volatile organic compounds) and smoke.

As per the Philips website, the 2000 Series Aerasense 2887/20 has smoke CADR of 334 m3/hr and formaldehyde CADR of 200 m3/hr. They also recommend using it for rooms of size 24-41 m2 (258- 441sq. ft). When you use the air purifier as per manufacturer recommendation, that is for 258 sq. ft area, the air change rate will be 5.05, which is pretty good and if you use it for 441 sq. ft., the air change rate will be 2.95 which is not optimal.

Air change rate of 4 is considered to be ideal for asthma, allergy patients as well as for homes in polluted cities. Hence, we recommend using this air purifier in a room of size less than 330 Sq. Ft.

What makes AC2887 different from its previous version AC2882 is the real-time display of PM 2.5 level in your room and 4 color ring that glows from red to blue as the quality of air improves.

Other Useful Features:

  • Filter Change Indicator
  • 3 step turbo fan
  • Vitashield IPS technology which helps improve the air flow owing to its aerodynamic structure
  • Low noise of 20 Decibels
  • Light can be dimmed as per user’s preference
  • Filter replacement indicator

Maintenance: The pre-filter of AC2887 can be cleaned with a vacuum cleaner or a soft dry brush. None of the filters should come in contact with water ever.

The carbon filter usually lasts for about 12-14 months, while the HEPA filter could last up to 24 months depending on the usage and environmental conditions.

The activated carbon filter costs about Rs. 1500, while the HEPA filter costs about Rs. 2500.

A frequent complaint seen is that the purifier starts emitting an odour after using for some time. This is because of the presence of moisture, germs and other contaminants in the filter. In such cases, you will have to remove the filters and put it in the sun for sanitizing it.

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Dyson Pure Cool Link Tower WiFi-Enabled Air Purifier (White/Silver)  

CADR: Not declared
best air purifier in India
Dyson is a reputed name in the purification business. Be it their vacuum cleaners or their air purifiers, Dyson is known to sell high quality products that are quite efficient. Dyson Pure Cool Link Tower Air Purifier follows suit.
First of all, you will notice that its design is quite elegant and functional. The air purifier oscillates 350 degree to take in air from all sides. The 360 degree glass HEPA filter also helps purify air from all sides, thereby enhancing filtration efficiency.  Next, the air purifier is equipped with air multiplier technology, meaning it throws out 13 times air compared to what it takes in. So, it has a mild cooling effect, which is good enough if you live in places like Bangalore. But for Delhi or such warmer places, you will need fan or air cooler separately.
Unlike other air purifiers, Dyson doesn’t state CADR for their air purifiers. Rather, they use an in-house POLAR test in which 9 sensors are placed to check the air quality index in a 260 Sq. Ft room. It was found that within 1 hour of operation, the air quality was found to be of satisfactory level.
Dyson claims that the Pure Cool Link Air Purifier can be used for rooms up to 460 Sq. Ft size.
Another distinguishing feature as per the manufacturers is that while most air purifiers have HEPA filter that purify particulate matter larger than 2.5 micron, Dyson’s grade 13 HEPA filter purifies particulate matter as small as 0.1 micron. Dyson states that this is because they use advanced borosilicate glass HEPA filter which is 6.3 m in length and pleated over 200 times to form a thick mesh. However, if you read their fine print, it states that purification efficiency for gaseous particulate matter ( which is obviously what an air purifier captures) may vary.
Instead of carbon filter found in usual air purifiers, it has Tris-coated graphite which captures gases from your home, including odours, household fumes and formaldehyde.
Yet another claim by Dyson is that the speed at which Dyson air purifiers takes in air is lesser compared to other conventional air purifiers. This ensures that the particulate matter captured by the filters remain in it and doesn’t escape back to the atmosphere due to air pressure.
Other useful features include-
– WiFi connectivity
– Real time air quality index using the app.
– Remote control for operation.
When we consider the value for money, this Dyson air purifier costs about twice a regular air purifier. Does it have twice the efficiency? Well, that it purifies PM 0.1 is quite an advantage. Manufacturers claim that it can be used for a fairly large space of 460 Sq. Ft. Even so, unless you have really bad respiratory illness and live in one of those highly polluted cities in India, it might not be worth the hefty price tag.
Dyson claims that the filters last for 12 months if you are using it for 12 hours a day. The filter life may vary depending on the  pollution level too. It costs less than Rs. 5000 for changing the filter set.
Dyson Pure Cool Air Purifier is the next variant which boasts of a few more user-friendly features and enhanced purification system. It has a built-in LCD panel that shows the level of air quality, including PM 10, PM 2.5, VOCs, NO2, temperature, humidity, an air quality graph, oscillation angle and filter life. Next, you get to experience diffused mode whereby the air flow is subdued so that the room temperature is not further cooled. The filter design is also better with thrice as much activated carbon compared to Pure Cool Link Air Purifier. You can check out the detailed review here.

Sharp FP-FM40E-B 33-Watt Air Purifier (Black)

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CADR: 240 m3/hr

Performance: Sharp FP-FM40E-B33 is perhaps world’s first air purifier with mosquito catcher. But other than the mosquito catching option, what really makes Sharp air purifiers a notch above the rest is the use of H14 grade HEPA filter—which is the highest grade HEPA filter that offers 99.995% purifying efficiency for removing PM 2.5 particles, smoke, dust and pollen.

Like all air purifiers, Sharp also has a pre-filter, activated carbon filter and a HEPA filter.

In addition to these, Sharp also uses plasmacluster technology which produces positive and negative ions using the moisture in the air. The ions attach to the surface of bacteria and virus, extracting the protein and killing it before it returns to the air as water vapour. This is especially useful for eradicating dust mites. Note that the plasmacluster technology does not produce ozone gas—a potential lung irritant. So, you can use it even if any of your family members suffer from asthma/ allergy.

best air purifier India

The CADR of the air purifier is 240m3/hr as per Sharp’s website. This makes it apt for rooms less than 240 sq. ft in size.

Now, the most awaited feature—the mosquito catcher. How does it work? The black coloured air purifier emits a blue light which attracts the mosquitoes. Then, the power airflow sucks the mosquito inside where it gets stuck on to a strong glue sheet.

Reviews suggest that the mosquito catcher is found to be fairly effective. If mosquitoes are a real menace at your home, Sharp FP-FM40E-B 33 will be a huge relief for you. But if they are far and few, it might not really be worth the extra money you spend.

Maintenance: You will have to contact dealers or Sharp’s customer care for buying activated carbon and HEPA filter. The air filter set costs about Rs. 8-9000.

In addition to these, you will also have to change the glue sheet used for catching mosquitoes every month at a cost of Rs. 1000 per sheet.

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Panasonic F-PXF35MKU(D) 20-Watt Air Purifier

CADR: 210 m3/hr

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Performance: This air purifier from Panasonic employs a composite air filter with pre-filter, activated carbon filter and HEPA filter and has an anti-bacterial coating, which inhibits 17 types of virus and bacteria. The purifier also employs nanoe technology, which is actually a type of ionizer, which the manufacturers claim helps keep skin soft and hydrated. However, there is no clarity whether or not it emits ozone in the ionization process.

The manufacturer states that it is suitable for room of size less than 283 sq. ft and has a CADR of 210 cubic metre per hour and air change rate of 2.90. For an ACH rating of 4, you may have to use it for room lesser than size 205 sq. ft.

Other useful features

  • 3 D air circulation with turbo mode
  • Auto and sleep mode
  • Odour and dust sensor

Maintenance: The filter used in this model of  air purifier has a life of 2 years and can be bought from any of Panasonic’s service centres. Regular maintenance of the pre-filter can be done by vacuum cleaning or using a soft brush.

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  1. You said honeywell uses HEPA 11 which has efficiency of 99% ..how is it true….
    Its only 95% and it doesnt work for particles smaller than 2.5
    Besides its semi HEPA or hepa type ..not true hepa filter
    It feels like your article is so untruthful

    • I am not sure how you have deduced that Honeywell air purifier has 95% efficiency. Would appreciate if you can explain for our better understanding.
      One of the main factors that we have to understand while analysing air purifier performance is that we will have to rely on manufacturers declaration of HEPA grades as it is not possible to analyse the same without utilising advanced labs and technology.
      You can check the Honeywell website as well as their HEPA filter product details in https://amzn.to/2OBNXLk It clearly mentions that they use H11 grade HEPA filter which has 99% efficiency in absorbing pollutants larger than 0.3 micron ( PM 2.5)
      What you said is true, it doesn’t work for particles smaller than 0.3 micron, which is already mentioned in the article. It is also true that Honeywell doesn’t use True HEPA filter which has 99.97% efficiency in purifying pollutants larger than 0.3 micron ( https://www.blueair.com/us/blog/hepa-type-vs-true-hepa)

  2. Hello!

    A great article! but could you please suggest anything about Coway Air purifiers? They claim to have the longest filter life.

    • Sharp Air purifier is better then other brands bcz it’s hepa filter h14 grade,and h14 is better grade for filters..search at Wikipedia…for best grade. That why I m use sharp air purifier.
      If any questions or suggestions about air purifier then ask me…I m a distributor and expert of Air Purifier.
      Regards: Naveen

    • Hi, Coway is quite popular brand in the US for air purifiers. While most air purifiers in the market are China made, they are from Korea. As the manufacturers claim it to be True Hepa, it should purify up to 99.97% of particles larger than 0.3 micron. Yes, as you said, they do seem to have longest filter life. While Coway HEPA filter has 8500 hours life, HEPA filters from most other brands have just about 3000 hours life. You can take a look at the models available here- https://amzn.to/2xs0KVJ
      We shall do an in-depth review of Coway air purifiers soon.

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