Amazon Basics Air Purifier AP5110-UL
#1 in Large roomsFull review
A large-room purifier for living areas up to about 500 sq ft, at a lower price per cfm than most big-name rivals. Skip it if you want to avoid ionizers.
Amazon $170.97$170.97
An air purifier is a fan that pulls room air through a fine filter. What it does for you comes down to one number: its clean air delivery rate (CADR), the cubic feet per minute of filtered air it delivers under a standard test. 32 of the 34 here have their CADR certified by an independent lab through the AHAM Verifide program or ENERGY STAR, and we size and rank them on that figure, not on the maker’s coverage claim. Coverage claims often assume the air changes only once an hour; the AHAM room size assumes about five, which is what it takes to keep smoke and allergens down.
The other cost is filters. A cheap purifier with expensive filters can cost more over three years than a pricier one, so each purifier’s yearly filter cost is scored alongside its price.
Top Picks
Blueair Blue Pure 511i Max
#1 in Medium roomsFull review
A compact, quiet smart purifier for bedrooms, nurseries and home offices.
Amazon $112.99$112.99
Shop by Room Size
Small rooms
12 rankedSmoke CADR under 150 cfm: a bedroom, nursery or office up to about 230 sq ft.
Top rated: Dreo 338 Air Purifier $59.98
Medium rooms
7 rankedSmoke CADR 150 to 249 cfm: a large bedroom or living room up to about 390 sq ft.
Top rated: Blueair Blue Pure 511i Max $112.99
Large rooms
15 rankedSmoke CADR 250 cfm and up: open living areas, basements and rooms over 390 sq ft.
Top rated: Amazon Basics Air Purifier AP5110-UL $170.97
Narrow It Down
By budget
By feature
Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Best Air Purifiers for Small Rooms
- Dreo 338 Air Purifier#1 of 12Full review
A cheap, certified bedroom purifier with auto mode for rooms under about 180 sq ft.
Amazon $59.98$59.98115178 sq ft-- - Levoit Vital 100S#2 of 12Full review
A slim smart purifier for a bedroom, especially with pets. It cleans about as much air as the Core 300 but adds auto mode and Wi-Fi.
Amazon $119.99$119.99143222 sq ft$52.63/year52 - Dreame TP5#3 of 12Full review
A frugal small purifier for a desk, nursery or small bedroom up to about 85 sq ft.
Amazon $49.99$49.995484 sq ft-- - Jafanda JF280#4 of 12Full review
Strong value for a bedroom up to about 210 sq ft, with a PM2.5 sensor and auto mode at $60.
Amazon $59.99$59.99135209 sq ft$89.97/year- - IKEA STARKVIND Air Purifier#5 of 12Full review
A good-looking small-room purifier with cheap filters, best for IKEA smart-home users.
IKEA $149.99$149.99123190 sq ft$50/year53
Best Air Purifiers for Medium Rooms
- Blueair Blue Pure 511i Max#1 of 7Full review
A compact, quiet smart purifier for bedrooms, nurseries and home offices.
Amazon $112.99$112.99153237 sq ft$59.98/year48 - Levoit Core 400S#2 of 7Full review
A strong all-round pick for a living room or large bedroom, with a real particle sensor and app control at a mid-range price.
Amazon $189.97$189.97231358 sq ft$49.99/year52 - Coway Airmega Mighty AP-1512HH#3 of 7Full review
A long-running favourite for a bedroom or living room that’s still cheap on Amazon. It has an air quality sensor but no app.
Amazon $154.98$154.98233-$59.79/year53 - Coway Airmega 150#4 of 7Full review
A quiet, good-looking purifier for a small bedroom or nursery. Bigger rooms need more airflow for the money.
Amazon $186.29$186.29153-$49.99/year48.3 - KNKA APH4000#5 of 7Full review
A low-priced purifier for medium rooms up to about 350 sq ft. It has a sensor-driven auto mode, but filter costs add up if you follow KNKA’s replacement schedule.
Amazon $99.99$99.99226350 sq ft$143.96/year-
Best Air Purifiers for Large Rooms
- Amazon Basics Air Purifier AP5110-UL#1 of 15Full review
A large-room purifier for living areas up to about 500 sq ft, at a lower price per cfm than most big-name rivals. Skip it if you want to avoid ionizers.
Amazon $170.97$170.97324502 sq ft$74.46/year- - Honeywell InSight HPA5300#2 of 15Full review
A large-room HEPA purifier with auto mode and a long warranty, for buyers who want Honeywell’s filters without an app.
Amazon $228.99$228.99323500 sq ft$84.99/year- - Blueair Blue Pure 311i Max#3 of 15Full review
A mid-size, efficient purifier with app control for bedrooms and living rooms up to about 440 sq ft.
Amazon $229$229283439 sq ft$89.98/year50 - Dreo Macro Max AS#4 of 15Full review
A strong-value smart purifier for large rooms up to about 450 sq ft.
Amazon $159.99$159.99294456 sq ft$79.98/year- - Winix 5520#5 of 15Full review
A living-room purifier with strong airflow and low filter costs at Amazon’s price. Turn PlasmaWave off if you’re sensitive to ozone.
Amazon $179.99$179.99253392 sq ft$47.49/year-
How We Rank
Each air purifier is scored on its price per cfm of certified smoke CADR, the yearly cost of its filters for the air it cleans, how loud it is at top speed (where CADR is measured), its certified efficiency, whether it has an air-quality sensor and auto mode, and its warranty.
| Factor | Measures | Weight |
|---|---|---|
| Value | price per cfm of clean air | 25% |
| Filter cost | yearly filter cost for the air it cleans | 20% |
| Quiet | sound at top speed | 20% |
| Efficiency | clean air per watt | 15% |
| Auto mode | air-quality sensor and app | 10% |
| Warranty | warranty length | 10% |
How we rank explains each factor in full.