Compare products

Head-to-head comparisons where the tradeoffs actually get named — because 'both are great' helps nobody.

Written head-to-heads

Comparisons

AirDoctor AD5500i vs Levoit Core 600S: Is $999 Worth It?

AirDoctor AD5500i vs Levoit Core 600S: 556 vs 391 CFM, but filters cost $355 vs $60 a year. Room math, 3-year totals and who needs the AirDoctor.

Air Purifiers

AirDoctor vs Coway: Which Air Purifier?

AirDoctor vs Coway: the AD5500i has higher CADR, serious VOC filtration and an app, the Airmega 400 is quieter and cheaper to own. Which premium unit wins?

Comparisons

Blueair 211+ vs 211i Max: Should You Upgrade?

Blueair 211+ vs 211i Max: more airflow, auto mode and less power, but a similar filter bill. Who should upgrade, who should keep the 211+ and why.

Air Purifiers

Blueair vs Coway: Which Air Purifier?

Blueair vs Coway: the Blue Pure 211i Max out-flows the Coway Airmega 400 and adds an app for less money. The Coway's case is True HEPA with no ionizer.

Comparisons

Coway Airmega 400 vs Levoit Core 600S: Worth the Extra $125?

Coway Airmega 400 vs Levoit Core 600S: the cheaper Levoit has the higher smoke CADR. Room math, 3-year costs and when the Coway still earns its price.

Comparisons

Coway Mighty vs Mighty2: Is the New One Worth It?

Coway Mighty vs Mighty2: same room size, so the call comes down to noise, filter cost and price. Who should buy which, and whether to upgrade.

Comparisons

Coway Mighty2 vs Levoit Vital 200S-P: Which to Buy?

Coway Mighty2 vs Levoit Vital 200S-P: same room class, about $100 apart. Three-year costs, pet hair, noise and app trade-offs, worked out.

Comparisons

Coway Mighty2 vs Winix 5530: Odor Control or Quiet?

Coway Mighty2 vs Winix 5530: near-identical room size, so carbon, top-speed noise, the ionizer and three-year cost decide it. Math and verdict inside.

Air Purifiers

Coway vs Levoit: Which Air Purifier Is Better?

Coway vs Levoit: the Coway Mighty brings more power and quiet, the Levoit Core 300S is cheaper with an app. Here's which air purifier is better for you.

Air Purifiers

Coway vs Winix: Which Air Purifier?

Coway vs Winix: the Coway Mighty runs quieter on low, the Winix 5500-2 covers more with washable carbon. Here's which value air purifier to buy.

Air Purifiers

Dyson vs Coway Air Purifier: Which Should You Buy?

Dyson vs Coway air purifier: the Dyson PC1 is a fan-purifier with an app and cheaper filters; the Coway Airmega 400 has verified CADR for big rooms.

Air Purifiers

Dyson vs Levoit: Which Air Purifier?

Dyson vs Levoit: the Dyson PC1 sells design and a bladeless fan but publishes no AHAM CADR; the Levoit Core 600S gives more proven clean air for less.

Air Purifiers

IQAir vs AirDoctor: Which Premium Air Purifier Wins?

IQAir vs AirDoctor: the IQAir HealthPro Plus filters hardest with a 10-yr warranty, the AirDoctor AD5500i moves more air for less up front. Which wins?

Comparisons

Levoit Core 300S vs Core 400S-P: Which Size Do You Need?

Levoit Core 300S vs 400S-P: 141 vs 231 CFM. Room-size math, 3-year costs and filter fit show which one your room needs, and when to keep the 300S.

Comparisons

Levoit Core 300S vs Core 600S: Bedroom Unit or Big-Room Unit?

Levoit Core 300S vs 600S: 141 vs 391 CFM. Room-by-room math, 3-year costs and the case for three small units versus one big one.

Comparisons

Levoit Core 300S vs Winix 5500-2: App or Airflow?

Levoit Core 300S vs Winix 5500-2: 141 vs 232 CFM at nearly the same cost per CFM. Room math, 3-year costs, PlasmaWave and which one your room needs.

Comparisons

Levoit Core 400S-P vs Core 600S: Which One Fits Your Room?

Levoit Core 400S vs 600S: 231 vs 391 CFM smoke CADR. Room-by-room math, 3-year costs and the 360 sq ft line that decides which one you need.

Comparisons

Levoit Core 400S-P vs Vital 200S-P: Which Is Better With Pets?

Levoit Core 400S vs Vital 200S: the Vital's rinsable pre-filter and Pet Mode win for shedding pets. Filter cost math, room sizes and when the 400S-P wins.

Comparisons

Levoit Core 400S-P vs Winix 5530: Shape, Smarts and Cost

Levoit Core 400S vs Winix 5530: a round 360° cylinder vs a flat-backed box. Footprint, app features, room math and 3-year filter costs compared.

Comparisons

Levoit Vital 200S-P vs Coway Mighty: App or No App?

Levoit Vital 200S vs Coway Mighty: near-equal airflow, so it comes down to app control and filter cost. 3-year math, room sizes and who should buy which.

Comparisons

Levoit Vital 200S-P vs Winix 5530: Ionizer, Filters and Cost

Levoit Vital 200S vs Winix 5530: same room size, so PlasmaWave, carbon and the 12-month Filter Q decide it. Break-even filter math and 3-year costs.

Air Purifiers

Levoit vs Blueair: Which Air Purifier?

Levoit vs Blueair: both are smart big-room purifiers now. The Blueair 211i Max moves more air; the Levoit Core 600S has cheaper filters and no ionizer.

Air Purifiers

Levoit vs Winix: Which Budget Air Purifier?

Levoit vs Winix: the Levoit Core 300S is smaller with an app, the Winix 5500-2 covers more with washable carbon. Here's which budget air purifier to buy.

Comparisons

Winix 5510 vs 5530: What's Actually Different?

Winix 5510 vs 5530: same 253 CFM rating, same Filter Q, same 65 W manual rating. How to tell them apart, why some listings say 45 W, and which to buy.

Air Purifiers

Winix vs Blueair: Which Air Purifier?

Winix vs Blueair: the Winix 5500-2 costs less to buy and run for rooms up to 360 sq ft. The Blueair 211i Max nearly doubles its airflow and adds an app.