Last updated on January 17th, 2023

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 Purifier Dust Pollen Smoke Price Review
Airganics 2000 2000 2000 2000 Price Review
Aprilaire 5000 2000 2000 2000 Price Review
Smart Health Blast 1360 1360 1360 Price Review
Tracs TM 950 950 950 950 Price Review
Purafil Purashield Smart 1000 840 1027 815 Price Review
Airpura P700 635 635 635 Price Review
Blueair Pro XL 600 450 600 Price Review
Airpura F600 560 560 560 Price Review
Airdog X8 470 470 470 Price Review
Medify Air MA-125 547 547 547 Price Review

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 & industrial areas.

Best 400 CADR Air Purifiers

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Air Purifier Dust Pollen Smoke Price Review
Blueair HealhProtect 7770i 435 435 435 Price Review
Austin Air HealthMate Plus 400 400 400 Price Review
Coway Airmega 400S 400 400 400 Price Review
Blueair Classic 680i 400 400 400 Price Review
Blueair Blue Pure 121
400 400 400 Price Review
Levoit Core 600S
410 410 410 Price Review

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 Purifier Dust Pollen Smoke Price Review
Air Health Skye 288 301 293 Price Review
Rabbit Air A3 SPA-1000N 315 315 315 Price Review
Honeywell InSight HPA5300 339 335 323 Price Review
Blueair Blue Pure 211+ Auto 347 380 353 Price Review
Oransi MD01 mod
337 381 338 Price Review
Alen BreatheSmart 75i 347 347 347 Price Review
Bissell Air400 319 353 313 Price Review
Medify Air MA-40 350 350 350 Price Review
Honeywell HPA300 320 300 300 Price Review
IQAir HealthPro Plus 330 330 330 Price Review

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

Best 200 CADR Air Purifiers

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Air Purifier Dust Pollen Smoke Price Review
Tracs TM250 250 250 250 Price Review
Coway Airmega AP-1512HH 246 240 233 Price Review
Winix PlasmaWave 5500-2 243 246 232 Price Review
Alen BreatheSmart 45i 245 245 245 Price Review
Blueair Blue Pure 311 Auto 250 244 250 Price Review
Instant AP300 259 289 251 Price Review
Hunter HP700 240 268 203 Price Review
GermGuardian AC5900 239 237 235 Price Review
Fellowes AeraMax 300 204 193 199 Price Review

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 Purifier Dust Pollen Smoke Price Review
Airdog X3 117 117 117 Price Review
Blueair Blue Pure 411 Auto 107 96 123 Price Review
Levoit Core 300s 135 135 135 Price Review
Alen T500 145 145 145 Price Review
Pomoron 165 165 165 Price Review
Aroeve 146 146 146 Price Review

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