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Air purifiers for a 1,076 sq ft spaceAir purifiers for a 100 m² space

Needs 1,200 m³/h (707 CFM) of smoke CADR. Why? 100 m²1,076 sq ft · An office floor, a waiting room or a whole flat

Picked by the BuyBySpecs Team

BuyBySpecs on YouTube · sources checked 1 Nov 2026

No single purifier cleans 1,076 sq ft. Two do.No single purifier cleans 100 m². Two do.

Fewest unitsAHAM verified

2 × Levoit EverestAir-P

Levoit · LAP-EL551S-AUS

Each cleans
539 sq ft50 m² 50 m²539 sq ft
New filter
every 12–15 months
See it on Amazon: Levoit EverestAir-P

2 units cover 1,078 sq ft100 m² (100 m²1,078 sq ft) · no spare

Why it's here: The fewest purifiers that do it: 2 units, each cleaning its 539 sq ft share.The fewest purifiers that do it: 2 units, each cleaning its 50 m² share.

Specs, sources and trade-offs
Most headroomAHAM verified

2 × Medify MA-112

Medify Air · MA-112

Each cleans
905 sq ft84 m² 84 m²905 sq ft
New filter
every 4 months
See it on Amazon: Medify MA-112

2 units cover 1,810 sq ft168 m² (168 m²1,810 sq ft) · 68% spare

Why it's here: The most spare air: together they clean 1,810 sq ft.The most spare air: together they clean 168 m².

Specs, sources and trade-offs

The biggest verified purifier on our list cleans 905 sq ft84 m². Spread two or more around the space: each one only has to clean its share, so it can run slower and quieter. Noise is per unit: two at the same level sound about 3 dB louder together, three about 5 dB.

The box says yes. The maths says no.

These are sold as big enough for 1,076 sq ft100 m², but at 4.8 air changes an hour they aren't.

  • Coway Airmega 400S Purifies 3,120 ft² in 60 minsPurifies 3,120 ft² in 60 mins (290 m²) really 499 sq ft46 m²
  • Blueair Blue Pure 311i Max Quickly cleans 439 ft² every 12.5 minutes & 2,207 ft² in 1 hourQuickly cleans 439 ft² every 12.5 minutes & 2,207 ft² in 1 hour (205 m²) really 431 sq ft40 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 350 Purifies 2,640ft² in 60 minsPurifies 2,640ft² in 60 mins (245 m²) really 536 sq ft49 m²
  • Levoit Vital 200S-P Changes the air in a 1862 ft2 room once per hourChanges the air in a 1862 ft2 room once per hour (173 m²) really 381 sq ft35 m²
  • Levoit Core 600S-P Changes the air in a 2909 ft2 room once per hourChanges the air in a 2909 ft2 room once per hour (270 m²) really 595 sq ft55 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
  • Blueair Blue Pure 211i Max Quickly cleans 674 ft² every 12.5 minutes & 3,235 ft² in 1 hourQuickly cleans 674 ft² every 12.5 minutes & 3,235 ft² in 1 hour (301 m²) really 662 sq ft61 m²
  • Winix 9800 Also cleans rooms up to 2,506 sq ft in 1 hourAlso cleans rooms up to 2,506 sq ft in 1 hour (233 m²) really 513 sq ft47 m²
  • Winix T810 Also cleans rooms up to 2,006 sq ft in 1 hourAlso cleans rooms up to 2,006 sq ft in 1 hour (186 m²) really 411 sq ft38 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

Before you buy for 1,076 sq ft100 m²

What 1,076 sq ft100 m² looks like

An office floor, a waiting room or a whole flat: about 30 × 36 ft (9 × 11 m)about 9 × 11 m (30 × 36 ft). With a 2.5 m ceiling that's 250 m³ of air to pass through a filter 4.8 times an hour.

How the picks differ

Spare air: none for the Levoit EverestAir-Ps and 68% for the Medify MA-112s. The more air to spare, the slower and quieter they can run here to keep up (more on noise).

Only the Levoit EverestAir-P has a PM2.5 sensor with auto mode. None has an ionizer.

New filters: every 12–15 months for the Levoit EverestAir-P and every 4 months for the Medify MA-112 (filters). The Levoit EverestAir-P is the most compact at 58.9 cm tall and 9.4 kg; the Medify MA-112 stands 71.9 cm and weighs 14.9 kg.

High ceilings

With a 2.7 m ceiling this room needs 1,296 m³/h of smoke CADR, with 3 m 1,440 m³/h. At 3 m only the Medify MA-112 still covers it. (Why ceilings matter)

Open-plan

Bigger than this, count each room behind a closed door separately: one purifier can’t clean the room next door (more).

Where to put it

For a whole flat, classroom or office floor, one unit per room or zone beats one big unit in the hall: doors stop the air. (Where to put it)

How these were chosen

  1. Only models whose verified smoke CADR gives 4.8 air changes an hour in 1,076 sq ft100 m² with a 2.5 m ceiling: at least 1,200 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: 861 sq ft80 m²

Not exactly 1,076 sq ft100 m²?

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