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Air purifiers for a 376 sq ft roomAir purifiers for a 35 m² room

Needs 420 m³/h (248 CFM) of smoke CADR. Why? 35 m²376 sq ft · A large living room or a studio flat

Picked by the BuyBySpecs Team

BuyBySpecs on YouTube · sources checked 1 Nov 2026

3 picks for 376 sq ft3 picks for 35 m²

Our pickAHAM verified

Winix 9800

Winix · 9800

Really cleans
513 sq ft47 m² 47 m²513 sq ft
New filter
every 3–12 months
See it on Amazon: Winix 9800

Covers 513 sq ft47 m² (47 m²513 sq ft) · 34% spare

Why it's here: The smallest verified model with 25% more air than this room needs, so it needn't run flat out.

Specs, sources and trade-offs

Also big enough for 376 sq ft35 m²

Winix 5510

Winix

AHAM verified

Really cleans
385 sq ft35 m² 35 m²385 sq ft
Box says
392 sq ft36 m² about right
New filter
12 months

Winix T810

Winix

AHAM verified

Really cleans
411 sq ft38 m² 38 m²411 sq ft
Box says
2,006 sq ft186 m² 4.9× overstated
New filter
12 months

Blueair Blue Pure 311i Max

Blueair

AHAM verified

Really cleans
431 sq ft40 m² 40 m²431 sq ft
Box says
2,207 sq ft205 m² 5.1× overstated
New filter
9 months

Honeywell HPA300

Honeywell

AHAM verified

Really cleans
457 sq ft42 m² 42 m²457 sq ft
Box says
465 sq ft43 m² about right
New filter
3–12 months

Levoit EverestAir-P

Levoit

AHAM verified

Really cleans
539 sq ft50 m² 50 m²539 sq ft
Box says
2,635 sq ft245 m² 4.9× overstated
New filter
12–15 months

Levoit Core 600S-P

Levoit

AHAM verified

Really cleans
595 sq ft55 m² 55 m²595 sq ft
Box says
2,909 sq ft270 m² 4.9× overstated
New filter
6–12 months

One bigger verified model covers it too, but it is more than twice the size this room needs, so we leave it out here. See every purifier.

Big enough on paper, but not verified

The CADR for these comes from the maker only, so we never make them a pick. We show the maths so you can compare.

Rabbit Air A3

Rabbit Air

Not verified

Really cleans
391 sq ft36 m² 36 m²391 sq ft
Box says
1,070 sq ft99 m² 2.7× overstated
New filter
12–24 months

Coway Airmega 400S

Coway

Not verified

Really cleans
499 sq ft46 m² 46 m²499 sq ft
Box says
3,120 sq ft290 m² 6.2× overstated
New filter
6–12 months

Coway Airmega 350

Coway

Not verified

Really cleans
536 sq ft49 m² 49 m²536 sq ft
Box says
2,640 sq ft245 m² 4.9× overstated
New filter
12 months

The box says yes. The maths says no.

These are sold as big enough for 376 sq ft35 m², but at 4.8 air changes an hour they aren't.

  • GermGuardian AC4825E Cleans a 153 sq. ft. room in just 12.5 minutes or up to 743 sq. ft. every hourCleans a 153 sq. ft. room in just 12.5 minutes or up to 743 sq. ft. every hour (69 m²) really 150 sq ft14 m²
  • Coway Airmega AP-1512HH Mighty Purifies 1,748 ft² in 60 minsPurifies 1,748 ft² in 60 mins (162 m²) really 355 sq ft32 m²
  • Coway Airmega Mighty2 Purifies 1,800 ft² in 60 minsPurifies 1,800 ft² in 60 mins (167 m²) really 365 sq ft33 m²
  • Coway Airmega 100 Purifies 810 ft² in 60 minsPurifies 810 ft² in 60 mins (75 m²) really 164 sq ft15 m²
  • Levoit Core 200S-P Changes the air in a 672 ft2 room once per hourChanges the air in a 672 ft2 room once per hour (62 m²) really 137 sq ft12 m²
  • Levoit Core 300 Changes the air in a 1066 ft2 room once per hourChanges the air in a 1066 ft2 room once per hour (99 m²) really 217 sq ft20 m²
  • Levoit Vital 100S-P Ideal Room Size: 1066 ft2 (1 ACH) / 222 ft2 (4.8 ACH)Ideal Room Size: 1066 ft2 (1 ACH) / 222 ft2 (4.8 ACH) (99 m²) really 217 sq ft20 m²
  • Blueair Blue Pure 511i Max Quickly cleans 237 ft² every 12.5 minutes & 1,138 ft² in 1 hourQuickly cleans 237 ft² every 12.5 minutes & 1,138 ft² in 1 hour (106 m²) really 233 sq ft21 m²
  • Levoit Core 400S-P Changes the air in a 1718 ft2 room once per hourChanges the air in a 1718 ft2 room once per hour (160 m²) really 356 sq ft33 m²
  • Coway Airmega 200M Purifies 1,748 ft² in 60 minsPurifies 1,748 ft² in 60 mins (162 m²) really 374 sq ft34 m²
  • Coway Airmega 150 Purifies 1,035 ft² in 60 minsPurifies 1,035 ft² in 60 mins (96 m²) really 233 sq ft21 m²
  • Xiaomi Smart Air Purifier 4 Compact It can purify a 48 m² room 2 times per hour (517 sq ft)It can purify a 48 m² room 2 times per hour really 206 sq ft19 m²

Before you buy for 376 sq ft35 m²

What 376 sq ft35 m² looks like

A large living room or a studio flat: about 18 × 21 ft (5.5 × 6.5 m)about 5.5 × 6.5 m (18 × 21 ft). With a 2.5 m ceiling that's 88 m³ of air to pass through a filter 4.8 times an hour.

How the picks differ

Spare air: 34% for the Winix 9800, none for the Levoit Vital 200S-P and 74% for the Blueair Blue Pure 211i Max. The more air to spare, the slower and quieter it can run here to keep up (more on noise).

All of them have a PM2.5 sensor with auto mode. The Winix 9800 has an ionizer you can switch off; the others have none.

New filters: every 3–12 months for the Winix 9800, every 6–12 months for the Levoit Vital 200S-P and every 9 months for the Blueair Blue Pure 211i Max (filters). The Levoit Vital 200S-P is the most compact at 50.2 cm tall and 6 kg; the Winix 9800 stands 58.9 cm and weighs 8.5 kg.

High ceilings

With a 2.7 m ceiling this room needs 454 m³/h of smoke CADR, with 3 m 504 m³/h. At 3 m only the Winix 9800 and Blueair Blue Pure 211i Max still cover it. For a high ceiling, look at the 430 sq ft40 m² picks. (Why ceilings matter)

Open-plan

If this room opens onto a kitchen or hall with no door between, count it too. Add 54 sq ft and you're at If this room opens onto a kitchen or hall with no door between, count it too. Add 5 m² and you're at 430 sq ft40 m²: of the picks here, only the Winix 9800 and Blueair Blue Pure 211i Max still cover it. (Open-plan spaces)

One purifier or two?

In a long or L-shaped room, two smaller units at opposite ends clean more evenly than one. Two Levoit Core 300s, each covering 217 sq ft (20 m²), do the job here (In a long or L-shaped room, two smaller units at opposite ends clean more evenly than one. Two Levoit Core 300s, each covering 20 m² (217 sq ft), do the job here (why two can beat one).

Where to put it

In a living room, put it near the sofa rather than in a corner, with the inlet clear of curtains and furniture. (Where to put it)

How these were chosen

  1. Only models whose verified smoke CADR gives 4.8 air changes an hour in 376 sq ft35 m² with a 2.5 m ceiling: at least 420 m³/h.
  2. Our pick is the smallest model with 25% more air than the room needs, so it needn't run flat out. Each card says why it's there.
  3. We don't test purifiers ourselves. The CADR behind every pick is certified by AHAM; the filter and feature facts are the makers' own, and each model's page links to them.
  4. No prices, and brands can't pay to be included. The full method

Other room sizes

Smaller: 322 sq ft30 m²Bigger: 430 sq ft40 m²

Not exactly 376 sq ft35 m²?

Enter your room and ceiling height. Room pages round up to the next size.