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The details that separate these air purifiers, taken from each listing.
| air purifier | Room size | Standout | Best for | |
|---|---|---|---|---|
| PuroAir 240 (2-Pack)#1 · Best Overall | Up to 1,000 sq ft each | Two units, HEPA | Two rooms | Check Price |
| PuroAir 400#2 · Runner-Up | Up to 2,000 sq ft | HEPA filtration | Large living spaces | Check Price |
| Blueair 311i Max#3 · Best Auto Mode | Up to 2,107 sq ft | HEPASilent, Wi-Fi, auto mode | Hands-off running | Check Price |
| Blueair 511i Max#4 · Best for Bedrooms | Up to 1,138 sq ft | HEPASilent, Wi-Fi, auto mode | Bedrooms | Check Price |
| Levoit Vital 200S-P#5 · Best Pet Mode | Up to 1,875 sq ft | Pet mode, Wi-Fi | Smart large-room use | Check Price |
| Levoit Vital Pet Pro#6 · Best for Pets | Large rooms | Auto-clean pre-filter | Homes with pets | Check Price |
| PuroAir 130i#7 · Best Smart Compact | Up to 750 sq ft | Smart HEPA | Phone control | Check Price |
| MOOKA KJ190H#8 · Largest Coverage | Up to 2,200 sq ft | PM2.5 sensor, HEPA | Very large rooms | Check Price |
| MOOKA B-D02L#9 · Best Budget | Up to 1,076 sq ft | True HEPA, carbon filter | Small rooms on a budget | Check Price |
| VEWIOR 2-Pack#10 · Washable Filter | Up to 1,200 sq ft | Washable H13 filter, auto mode | Lower filter costs | Check Price |
Coverage is the first number to check. A purifier that is too small runs flat out and still falls behind. Match the rated room size to your space, and size up if you have high ceilings or an open floor plan.
For dust, pollen and smoke particles, a HEPA filter does the work. Pet owners should look for a pre-filter that catches hair before it clogs the main filter. Odors need activated carbon, so check the listing if smells are your main problem.
Smart models measure air quality and change fan speed on their own, which keeps noise down when the air is already clean. Basic models cost less and work just as well if you are happy to set the speed yourself.
Before you order
For airborne particles such as dust, pollen, pet dander and smoke, yes. A HEPA purifier sized for the room lowers particle levels noticeably. They do not remove dust that has already settled on surfaces.
Yes, on a low or automatic setting. Air quality drops again soon after you switch it off, and low speeds use little power.
It depends on the model and your air. Many HEPA filters last six to twelve months. Washable pre-filters should be rinsed every few weeks.
In the room where you spend the most time, usually the bedroom or living room, with clear space around it.
On low speeds most are a quiet hum. Top speed is noticeably louder, which is why auto mode is useful at night.
Every air purifier gets one score out of 10, built from four criteria.
How well it does its main job, judged on the specifications in each listing.
Setup, upkeep and how much attention it needs week to week.
What buyers report after months of use, and how many of them there are.
What you get for the price compared with the others on this page.
What works, what to know before you buy, and who each one suits.
#1 · Best Overall
Our score 9.8/10
Two units means two sets of filters to replace.
Covering two rooms with one purchase.
#2 · Runner-Up
Our score 9.6/10
Coverage is the manufacturer's rating. Expect the best results in rooms smaller than the maximum.
Large living rooms and open-plan spaces.
#3 · Best Auto Mode
Our score 9.5/10
Coverage is the manufacturer's rating. Expect the best results in rooms smaller than the maximum.
Living rooms where you want it to adjust itself.
#4 · Best for Bedrooms
Our score 9.3/10
The smaller of the two Blueairs here. Choose the 311i Max for a living room.
Bedrooms and other small rooms.
#5 · Best Pet Mode
Our score 9.1/10
Needs the app for scheduling and remote control.
Large rooms where you want smart control.
#6 · Best for Pets
Our score 8.9/10
Without pets you will not use the hair pre-filter, and the Vital 200S-P is the simpler choice.
Homes with shedding pets.
#7 · Best Smart Compact
Our score 8.8/10
Coverage is the manufacturer's rating. Expect the best results in rooms smaller than the maximum.
A bedroom purifier you can control from your phone.
#8 · Largest Coverage
Our score 8.6/10
A less established brand than Levoit or Blueair, so check that replacement filters are easy to find.
The biggest rated coverage on this list.
#9 · Best Budget
Our score 8.4/10
At the full 1,076 sq ft the listing gives one air change per hour, so it suits rooms closer to 215 sq ft.
A low-cost purifier for a bedroom or office.
#10 · Washable Filter
Our score 8.2/10
A smaller brand with far fewer reviews than the names above.
Two rooms, with a filter you can wash.
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