Levoit Vital 200S-P
AHAM verified
- Really cleans
- 381 sq ft35 m² 35 m²381 sq ft
- Box says
- 1,862 sq ft173 m² 4.9× overstated
- New filter
- 6–12 months
Levoit · LAP-C401S-WUSR
Levoit Core 400S-P
Really cleansAHAM verified
356 sq ft33 m² 33 m²356 sq ft
At 4.8 air changes an hour with a 2.5 m ceiling
- Box says
- Changes the air in a 1718 ft2 room once per hourChanges the air in a 1718 ft2 room once per hour (160 m²) 4.8× overstated
- New filter
- Every 6–12 months
See it on Amazon: Levoit Core 400S-PPaid link
A tall smart cylinder with a verified CADR, a laser dust sensor and an app. Cleans an average living room.
Verdict
Who it's for
Our default size for an average living room: AHAM-verified, with a laser dust sensor, auto mode, app control and no ionizer. It covers that room with some air to spare.
Good
- CADR verified by AHAM
- Laser dust sensor and auto mode
- App and voice control
- No ionizer
Trade-offs
- Taller than the small-room models
- Box headline is based on one air change an hour
Spec facts
Levoit Core 400S-P · LAP-C401S-WUSR
- Really cleans
- 356 sq ft · 33 m²33 m² · 356 sq ftat 4.8 air changes an hour, 2.5 m ceiling
- Box claim
- Changes the air in a 1718 ft2 room once per hourChanges the air in a 1718 ft2 room once per hour (160 m²)4.8× overstated
- Maker’s claim: Levoit · checked 1 Nov 2026
- Filter
- Levoit Core 400S-P 3-Stage 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 400S-P 3-Stage Replacement Filter
- Type
- 3-stage: pre-filter, HEPA-grade filter, activated carbon
- Replace every
- 6–12 months
- Power at top speed
- 38 W
A new filter every 6–12 months means 1–2 filters a year. At top speed it draws 38 W: 0.9 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 1,718 sq ft160 m². It really cleans 356 sq ft33 m².
To clean 1,718 sq ft160 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.
398 m³/h smoke CADR ÷ (4.8 × 2.5 m ceiling) = 33.1 m² = 356.6 sq ft33.1 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 1718 ft2 room once per hour”, the purifier really cleans 356 sq ft, 4.8 times less.Drawn to scale: the box says “Changes the air in a 1718 ft2 room once per hour”, the purifier really cleans 33 m², 4.8 times less.
Room sizes
Which rooms it fits
It suits 215 sq ft20 m² and 269 sq ft25 m² rooms best: there it has 32–65% more air than the room needs, so it needn't run flat out. At 322 sq ft30 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 161 sq ft15 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 330 sq ft, under 3 m 297 sq ftUnder a 2.7 m ceiling it covers 30 m², under 3 m 27 m², so with a 3 m ceiling it no longer covers 322 sq ft30 m² (why).
For a 376 sq ft room or bigger it's too small, although the box claims 1,718 sq ft: the For a 35 m² room or bigger it's too small, although the box claims 160 m²: the 376 sq ft35 m² page lists models that cover it.
Alternatives
The Levoit Core 400S-P or one of these?
The certified models closest in size, and what is different about each, from the same kinds of source.
Cleans 381 sq ft, 25 sq ft moreCleans 35 m², 2 m² more. It draws 50 W at top speed. 1 kg heavier.
Winix 5510
AHAM verified
- Really cleans
- 385 sq ft35 m² 35 m²385 sq ft
- Box says
- 392 sq ft36 m² about right
- New filter
- 12 months
Cleans 385 sq ft, 29 sq ft moreCleans 35 m², 2 m² more. It has an ionizer you can switch off. It goes longer between filters (every 12 months) and draws 65 W at top speed. 4.3 cm taller and 1 kg heavier.
Winix T810
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
Cleans 411 sq ft, 55 sq ft moreCleans 38 m², 5 m² more. It has an ionizer you can switch off. It goes longer between filters (every 12 months).
Sources
Where these numbers come from
- Certified AHAM Verifide directory: Levoit Core 400S-P (LAP-C401S-WUSR, LAP-C401S-KUSR) · AHAM Verifide
- Maker’s claim Levoit Core 400S-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.