Best Air Purifier for Pets (2026): Winix AT40, $192.57

The best air purifier for pets is the Winix AT40: 259 dust CADR, certified for rooms up to 410 sq ft, $192.57. It has a true HEPA filter for dander and carbon for odor.

Winix AT40

Best for most pet owners

Winix AT40

$192.57 on Amazon

Check price on Amazon
  • AHAM-certified dust CADR of 259 (pollen 244), for rooms up to 410 sq ft.
  • True HEPA filter for dander, plus carbon for pet smell. The most dust CADR of the 3 purifiers with both that cost under $200 today.
  • Its Amazon listing comes with a second filter: two years of filters by the maker's 12-month schedule.
  • Genuine filter: $49.99, changed every 12 months: about $50 a year.
  • On California's (CARB) list of air cleaners tested for ozone. Its PlasmaWave ionizer can be switched off (the maker's manual). ENERGY STAR, 45 W.

Which one is right for you?

  • For a bigger room or several pets (up to 563 sq ft)

    Wozoyo Pure Air PA6 · 372 dust CADR · True HEPA + carbon

    The most dust CADR of any purifier with a carbon filter we could buy today.

    $249.99 on Amazon

  • To spend less (up to 350 sq ft)

    KNKA APH4000 · 226 dust CADR · HEPA-type + carbon

    The cheapest purifier with a carbon filter that AHAM certifies for a 300 sq ft room or more.

    $99.99 on Amazon

  • For a small bedroom (up to 178 sq ft)

    Dreo 338 · 121 dust CADR · True HEPA

    The cheapest true HEPA purifier AHAM certifies for 150 sq ft or more.

    $59.98 on Amazon

  • For hair on the floor and the whole house

    A MERV 11 furnace filter · If you have central heat or air

    No purifier picks hair up off the floor: hair is heavy and drops. Vacuum often. If you have central air, a MERV 11 furnace filter cleans the air your system moves through the whole house.

    Find your furnace filter size

Prices are Amazon's on November 11, 2026. Room sizes are AHAM-certified, not the listing's.

By Erin Rose · Updated

01 / Pets

What a purifier can and can't do for pets

  1. It cleans the air, not the floor.Hair is heavy and drops. A purifier catches the dander and dust that stay in the air. Vacuum for the rest.
  2. Dust CADR is the number to compare.EPA says AHAM's dust test stands for medium-size particles. A higher dust CADR clears the air in a room faster.
  3. Carbon for smell, and more is better.EPA: carbon works "provided that there is a large amount of material used in the filter." No CADR measures odor.
  4. A pre-filter you can clean.Hair clogs filters. A pre-filter you vacuum or rinse keeps air moving and makes the main filter last.
  5. No ozone.EPA: avoid air cleaners "that intentionally produce ozone." Every pick here is on California's tested list.

02 / Every one in stock

All 30 certified purifiers we could buy today

All 30 certified purifiers we could buy today: dust and pollen CADR, room size, filter and Amazon price
PurifierDust CADRPollen CADRRoomFilterPriceBuy
For rooms 400 sq ft and up
Fellowes AeraMax SVsold by Amazon 512 450 803 sq ft — $735 Buy
Levoit Core 600Ssold by Amazon 398 436 606 sq ft HEPA-type $259.97 Buy
Wozoyo Pure Air PA6 372 431 563 sq ft True HEPA + carbon $249.99 Buy
Whirlpool WPPRO2000 339 381 529 sq ft True HEPA $349.99 See Winix 9800 on Amazon
Blueair Blue Pure 311i Maxsold by Amazon 314 365 439 sq ft Fabric $149.99 See Winix AT40 on Amazon
Dreo Macro Max ASsold by Amazon 306 336 456 sq ft True HEPA $149.99 Buy
Winix T810sold by Amazon 272 277 418 sq ft True HEPA $175.99 Buy
Winix AT40sold by Amazon 259 244 410 sq ft True HEPA + carbon $192.57 Buy
For rooms 250 to 399 sq ft
Levoit Vital 200Ssold by Amazon 254 289 388 sq ft HEPA-type $169.96 Buy
Winix 5510sold by Amazon 252 247 392 sq ft True HEPA + carbon $179.99 Buy
Winix 5520sold by Amazon 252 247 392 sq ft True HEPA + carbon $179.99 See Winix AT40 on Amazon
Winix 5530sold by Amazon 252 247 392 sq ft True HEPA + carbon $219.99 See Winix AT40 on Amazon
Winix C610 252 262 384 sq ft True HEPA $176.49 Buy
Honeywell HPA4300Bsold by Amazon 238 245 354 sq ft True HEPA $158.11 Buy
GermGuardian AC3250sold by Amazon 233 238 347 sq ft True HEPA $239.99 Buy
Blueair DustMagnet 5440isold by Amazon 231 274 335 sq ft HEPA-type + carbon $319.99 See Winix AT40 on Amazon
GermGuardian AC3200sold by Amazon 230 258 348 sq ft True HEPA $229.99 Buy
GermGuardian AP3250sold by Amazon 226 245 345 sq ft True HEPA $229.99 Buy
KNKA APH4000 226 244 350 sq ft HEPA-type + carbon $99.99 Buy
For rooms under 250 sq ft
Dreo DR-HAP009ASsold by Amazon 161 163 225 sq ft True HEPA $107.93 Buy
Levoit Vital 100Ssold by Amazon 161 173 222 sq ft HEPA-type $113.99 Buy
Levoit Core 300sold by Amazon 153 167 222 sq ft HEPA-type $84.99 Buy
Whirlpool WPT80 137 162 199 sq ft True HEPA $149.29 Buy
GermGuardian AC5250PTsold by Amazon 132 138 189 sq ft True HEPA $149.99 Buy
Dreo 338sold by Amazon 121 131 178 sq ft True HEPA $59.98 Buy
GermGuardian AC4825Esold by Amazon 116 129 153 sq ft True HEPA $124 Buy
GermGuardian AC4300sold by Amazon 100 106 138 sq ft True HEPA $99.99 See KNKA on Amazon
Wozoyo Pure Air PA2 84 114 116 sq ft True HEPA + carbon $67.99 Buy
Whirlpool WPT60 (black) 79 84 108 sq ft True HEPA $106.69 Buy
Levoit Core Minisold by Amazon 39 61 53 sq ft HEPA-type $39.99 Buy

Dust CADR, pollen CADR and room size are AHAM-certified. Filter type is how AHAM files it. Listings in a paid campaign are left out. Prices read live November 11, 2026. See every certified unit, in stock or not, on our main purifier guide.

03 / Questions

Frequently asked

What is the best air purifier for pet hair and dander under $200?
The Winix AT40. It has a true HEPA filter and carbon, and AHAM certifies it at 259 dust CADR for 410 sq ft. To spend less, the KNKA APH4000 (226 dust CADR, 350 sq ft) also has carbon.
Does an air purifier remove pet hair?
Only the hair that floats past it. Most hair is heavy and falls to the floor, so you still need to vacuum. A purifier's job is the dander and dust in the air.
Will an air purifier help my pet allergy?
It may. EPA: "Multiple studies with portable HEPA air cleaners have found improvements in one or more allergy and/or asthma symptom(s)." It also says the studies "do not always show major improvements." Keep pets out of the bedroom and run the purifier there.
Does an air purifier get rid of pet odor?
Only with carbon, and only some. Odor is a gas; EPA says "The CADR rating system is for particles only" and carbon works "provided that there is a large amount of material used in the filter." Clean the litter box often; a purifier will not keep up with a dirty one.
What size air purifier do I need for pets?
Use the room size AHAM certifies, which follows its rule of a CADR of at least two-thirds of the room's square feet. Every purifier on this page lists it. The square feet on the Amazon listing is usually several times bigger and is not a fit for allergies.
Dust CADR or pollen CADR for pets?
Look at both. EPA says AHAM's smoke, dust and pollen tests stand for small, medium and large particles. We rank by dust CADR, the middle size, and the table shows pollen CADR too.
How much do filters cost a year?
Genuine filters on Amazon today, on each maker's schedule: Winix AT40: $49.99, every 12 months, about $50 a year; Dreo 338: $21.79, every 6 months, about $44 a year. Pet hair can clog filters faster.
Are air purifiers safe for cats and dogs?
Yes, if they make no ozone. EPA: "Avoid portable air cleaners ... that intentionally produce ozone. Ozone is a lung irritant." California (CARB) tests air cleaners for ozone; every pick here is on its list.

References

Sources

6 references · prices on November 11, 2026
  1. 1

    AHAM Verifide directory of certified room air cleaners

    Dust, pollen and smoke CADR, certified room size and ENERGY STAR for every purifier on this page.

  2. 2

    AHAM Verifide: Air Filtration Standards (the 2/3 rule)

    Read October 20, 2026. "the CADR of your air cleaner should be equal to at least two-thirds of the room's area."

  3. 3

    U.S. EPA: Guide to Air Cleaners in the Home

    Read October 20, 2026. Smoke, dust and pollen stand for small, medium and large particles; allergy evidence; carbon for gases; avoid ozone.

  4. 4

    California Air Resources Board: list of CARB-certified air cleaning devices

    Read October 20, 2026. Certification covers ozone and electrical safety, not cleaning performance.

  5. 5

    Maker filter pages: replacement intervals and pre-filters

    Each maker's own page or manual, read October 20, 2026.

  6. 6

    Amazon listings: price, seller and stock

    Read live on November 11, 2026. A price shows only if the listing could be bought that day.