Last updated on August 8th, 2022

The CADR or Clean Air Delivery Rate rating is a measure of how well an air purifier removes particles (dust, pollen or smoke) from the air. The higher the CADR, the faster it can clean and improve your home’s air quality. To help you find the best in class for your needs we have compiled this list of top-rated models with their corresponding CADR ratings.

CADR is measured separately for dust, pollen and smoke. This table consists of 30+ mostly portable HEPA air purifiers (some of them also feature an ionizer while other are AHAM-certified air cleaners) which you can sort out by each column, as you wish.

Highest CADR-rated Air Purifiers

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Air PurifierDustPollenSmokePriceReview
Airganics 2000200020002000PriceReview
Aprilaire 5000200020002000PriceReview
Smart Health Blast136013601360PriceReview
Tracs TM 950950950950PriceReview
Purafil Purashield Smart 10008401027815PriceReview
Airpura P700635635635PriceReview
Blueair Pro XL600450600PriceReview
Airpura F600560560560PriceReview
Airdog X8470470470PriceReview
Medify Air MA-125547547547PriceReview

These air purifiers are the best when it comes to removing air pollution, allergens, dust, chemicals, bacteria and viruses in large open spaces, laboratories, hospitals, schools and other public and commercial areas.

Best 400 CADR Air Purifiers

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Air PurifierDustPollenSmokePriceReview
Blueair HealhProtect 7770i435435435PriceReview
Austin Air HealthMate Plus400400400PriceReview
Coway Airmega 400S400400400PriceReview
Blueair Classic 680i400400400PriceReview
Blueair Blue Pure 121
400400400PriceReview
Levoit Core 600S
410410410PriceReview

400 CADR-rated air cleaners are the best to put in extremely big rooms, school rooms or any area space that has a lot of people inside.

Best 300 CADR Air Purifiers

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Air PurifierDustPollenSmokePriceReview
Air Health Skye288301293PriceReview
Rabbit Air A3 SPA-1000N315315315PriceReview
Honeywell InSight HPA5300339335323PriceReview
Blueair Blue Pure 211+ Auto347380353PriceReview
Oransi MD01 mod
337381338PriceReview
Alen BreatheSmart 75i347347347PriceReview
Bissell Air400319353313PriceReview
Medify Air MA-40350350350PriceReview
Honeywell HPA300320300300PriceReview
IQAir HealthPro Plus330330330PriceReview

These air purifiers are good enough for apartments, living rooms, big areas.

Best 200 CADR Air Purifiers

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Air PurifierDustPollenSmokePriceReview
Tracs TM250250250250PriceReview
Coway Airmega AP-1512HH246240233PriceReview
Winix PlasmaWave 5500-2243246232PriceReview
Alen BreatheSmart 45i245245245PriceReview
Blueair Blue Pure 311 Auto250244250PriceReview
Instant AP300259289251PriceReview
Hunter HP700240268203PriceReview
GermGuardian AC5900239237235PriceReview
Fellowes AeraMax 300204193199PriceReview

Air purifiers that have CADR 200 or above are universal air cleaners, as they can be used in most rooms and small apartments retaining their efficiency at removing harmful particles.

Best 100 CADR Air Purifiers

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Air PurifierDustPollenSmokePriceReview
Airdog X3117117117PriceReview
Blueair Blue Pure 411 Auto10796123PriceReview
Levoit Core 300s135135135PriceReview
Alen T500145145145PriceReview
Pomoron165165165PriceReview
Aroeve146146146PriceReview

100 CADR-rated cleaners are mostly used in small rooms like bathrooms or bedrooms.

Unfortunately, not all air purifiers manufacturers use CADR as their measurement system, so we can’t include them into this table. However, most of such air cleaners fall under $100 price range and their CADR ratings for pollen, dust and smoke (tobacco etc.) is quite low, often below 100. Such cheap purifiers are effective only in small rooms so keep this in mind.

Also, CADR rating does not always measure the quality of the air but more often the speed with which air is getting cleaned from pollutants. So whereas you want buy yourself an air purifier, read reviews about what other customers are saying.

What is a Good CADR Rating For an Air Purifier?

CADR rating is the number of cubic feet per minute that can be filtered by an air purifier. Air purifiers with a higher CADR rating will filter more pollutants from your home’s air in less time. Higher rated models may also have features like odor reduction capabilities and larger dust capacity.

You should consider the size of your room to determine which model would work best for you, but a good rule of thumb is that you need at least 100 CADR for small rooms, 200 CADR for medium-sized rooms, and 300 CADR if you want your air purifier to cover large living spaces.

Air purifiers with high CADR rating filter more pollutants from your home’s air in less time than a lower rated model, and can cover larger rooms or spaces as well. You should consider how much space you have to clean when looking at this number though – if you’re just trying to clear up a smaller room or two then 100 – 200 may be enough (and save on electricity), but 300+ could help make your entire house smell fresher and cleaner.

To sum up it all:

  • Small rooms: ~100 is enough (higher is better though)
  • Medium rooms: 200 or more
  • Large rooms: 300 or more