Winix 9800
AHAM verified
- Really cleans
- 513 sq ft47 m² 47 m²513 sq ft
- Box says
- 2,506 sq ft233 m² 4.9× overstated
- New filter
- 3–12 months
Levoit · LAP-C601S-WUS
Levoit Core 600S-P
Really cleansAHAM verified
595 sq ft55 m² 55 m²595 sq ft
At 4.8 air changes an hour with a 2.5 m ceiling
- Box says
- Changes the air in a 2909 ft2 room once per hourChanges the air in a 2909 ft2 room once per hour (270 m²) 4.9× overstated
- New filter
- Every 6–12 months
See it on Amazon: Levoit Core 600S-PPaid link
Levoit's largest round purifier, AHAM-verified, with a laser dust sensor and an app. Cleans an open-plan kitchen and living room.
Verdict
Who it's for
A tall cylinder for an open-plan kitchen and living room. It's verified, has a laser sensor and auto mode, and no ionizer. It's big, so check the height against where you want it before you buy.
Good
- CADR verified by AHAM
- Laser dust sensor and auto mode
- App and voice control
- No ionizer
Trade-offs
- Tall and heavy
- Box headline is based on one air change an hour
Spec facts
Levoit Core 600S-P · LAP-C601S-WUS
- Really cleans
- 595 sq ft · 55 m²55 m² · 595 sq ftat 4.8 air changes an hour, 2.5 m ceiling
- Box claim
- Changes the air in a 2909 ft2 room once per hourChanges the air in a 2909 ft2 room once per hour (270 m²)4.9× overstated
- Maker’s claim: Levoit · checked 1 Nov 2026
- Filter
- Levoit Core 600S-P Original Replacement Filter3-stage: pre-filter, HEPA-grade filter, activated carbon. Replace every 6–12 months
- Maker’s claim: Levoit support · checked 1 Nov 2026
Certified: measured in an independent lab for AHAM’s Verifide programme. Maker’s claim: the manufacturer’s own figure, not independently checked. Where figures come from
Running it
Filter and upkeep
- Replacement filter
- Levoit Core 600S-P Original Replacement Filter
- Type
- 3-stage: pre-filter, HEPA-grade filter, activated carbon
- Replace every
- 6–12 months
- Power at top speed
- 49 W
A new filter every 6–12 months means 1–2 filters a year. At top speed it draws 49 W: 1.2 kWh if it ran flat out all day. Slower settings use less.
Source: Maker’s claim, Levoit support, checked 1 Nov 2026
The box vs the maths
The box says 2,909 sq ft270 m². It really cleans 595 sq ft55 m².
To clean 2,909 sq ft270 m² it would only change the air in the room 1 time an hour. We size every purifier at 4.8 air changes an hour, the level AHAM's room-size guideline works out to.
Levoit's figure is the room it can change the air of once an hour, and the wording says as much. That's a real number, but at one air change an hour smoke and pollen come back in nearly as fast as the purifier removes them.
664 m³/h smoke CADR ÷ (4.8 × 2.5 m ceiling) = 55.4 m² = 595.9 sq ft55.4 m²
Use the calculator for your exact room and ceiling, or read how we pick.
Drawn to scale: the box says “Changes the air in a 2909 ft2 room once per hour”, the purifier really cleans 595 sq ft, 4.9 times less.Drawn to scale: the box says “Changes the air in a 2909 ft2 room once per hour”, the purifier really cleans 55 m², 4.9 times less.
Room sizes
Which rooms it fits
It suits 322 sq ft30 m², 376 sq ft35 m² and 430 sq ft40 m² rooms best: there it has 37–83% more air than the room needs, so it needn't run flat out. At 538 sq ft50 m² it only just keeps up (10% to spare), so it would run near its top speed, usually its loudest (why we don’t list noise). In rooms of 269 sq ft25 m² or less it's more than twice the size needed; a smaller model does the job.
Under a 2.7 m ceiling it covers 551 sq ft, under 3 m 496 sq ftUnder a 2.7 m ceiling it covers 51 m², under 3 m 46 m², so with a 3 m ceiling it no longer covers 538 sq ft50 m² (why).
For a 645 sq ft room or bigger it's too small, although the box claims 2,909 sq ft: the For a 60 m² room or bigger it's too small, although the box claims 270 m²: the 645 sq ft60 m² page lists models that cover it. In an open-plan space, add up every area without a door between (how).
Alternatives
The Levoit Core 600S-P or one of these?
The certified models closest in size, and what is different about each, from the same kinds of source.
Cleans 513 sq ft, 82 sq ft lessCleans 47 m², 8 m² less. It has an ionizer you can switch off. It needs filters more often (every 3–12 months). 2.3 kg heavier.
Levoit EverestAir-P
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
Cleans 539 sq ft, 56 sq ft lessCleans 50 m², 5 m² less. It goes longer between filters (every 12–15 months) and draws 70 W at top speed. 3.2 kg heavier.
Blueair Blue Pure 211i Max
AHAM verified
- Really cleans
- 662 sq ft61 m² 61 m²662 sq ft
- Box says
- 3,235 sq ft301 m² 4.9× overstated
- New filter
- 9 months
Cleans 662 sq ft, 67 sq ft moreCleans 61 m², 6 m² more. It has a different filter schedule (every 9 months). 1.1 kg heavier.
Sources
Where these numbers come from
- Certified AHAM Verifide directory: Levoit Core 600S-P (LAP-C601S-WUS, -AUS, -WCA) · AHAM Verifide
- Maker’s claim Levoit Core 600S-P product page and specifications · Levoit
- Maker’s claim How often do I have to change or replace my filter? · Levoit support
We don't test purifiers ourselves: every figure on this page is copied from these sources and was last checked on 1 Nov 2026. Spotted one that's wrong or out of date? Tell us and we'll fix it and change the date.