Independent buying guidance · UK editionHow we work

Gearjury may earn a commission from qualifying purchases. Our recommendations are based on published evidence.

Head to head

Levoit Core 300S vs Vital 100S vs Winix Zero Compact: Which Compact Air Purifier Suits Your Room?

The Core 300S publishes the lowest sleep-mode noise here, at 22 dB. The Zero Compact has the highest published CADR, 250 m³/h, against 243 m³/h for the Vital 100S.

Quick answer

Short answer: for a quiet bedroom, the Levoit Core 300S is the most direct pick, because its manufacturer publishes 22 dB in Sleep Mode with display lights off. If you want more published airflow, the Winix Zero Compact lists 250 m³/h, but the source checked publishes no sleep-mode decibel figure for it.

The three models are not fully like-for-like. Levoit rates room size at different air-change rates, Winix gives a maximum room capacity with no air-change assumption, and the Vital 100S gives 20.8 m² at five air changes per hour. Read the table before comparing room claims.

No overall winner is declared here; the right choice depends on whether you prioritise quiet sleep, airflow or filter interval. For the wider shortlist, see best air purifiers for the bedroom, or read how to choose an air purifier to match room size and airflow first. You can also browse all air purifiers.

  • Levoit Core 300S: Best for light sleepers who want the lowest published sleep-mode noise here
  • Levoit Vital 100S: Best for smaller bedrooms where airflow matters more than the lowest number
  • Winix Zero Compact: Best for buyers who want the highest published CADR here and a 12-month filter interval
01Levoit Core 300SOfficial manufacturer image

Best for light sleepers who want the lowest published sleep-mode noise here

Levoit Core 300S

Best for light sleepers who want the quietest published figure in this set. Sleep Mode is rated at 22 dB, with display lights off. Room size is given as 50 m² at two air changes per hour and 100 m² at one; the larger figure implies fewer air changes per hour. No CADR is published in the checked source, and filters are offered every 6 to 8 months.

Limitation: no CADR and no power figure in the checked source.

Noise from 22 dBRoom 50 m²
Check price on Amazon UKSponsored link · no live price shown
02Levoit Vital 100SOfficial manufacturer image

Best for smaller bedrooms where airflow matters more than the lowest number

Levoit Vital 100S

Best for smaller bedrooms where airflow is the priority. The manufacturer lists a 243 m³/h CADR and 20.8 m² at five air changes per hour. It has a washable pre-filter and a light sensor that turns display lights off in darkness. Filter replacement is recommended every 8 to 12 months.

Sleep-mode noise: this comparison uses the conservative 24 dB figure. The same manufacturer source also states 23 dB in its main copy.

Limitation: the 24 dB figure comes from an image description, so check the current manufacturer figure if sleep noise is decisive.

Noise from 24 dBRoom 20.8 m²CADR 243 m³/h
Check price on Amazon UKSponsored link · no live price shown
03Winix Zero CompactOfficial manufacturer image

Best for buyers who want the highest published CADR here and a 12-month filter interval

Winix Zero Compact

Best for buyers who want the highest published CADR here, 250 m³/h, and a 12-month filter interval. The maximum room size is 50 m², and the product page states no air-change assumption. Sleep Mode switches off control-panel lights. No sleep-mode decibel figure is published; the overall range is 26.5 to 53.7 dB.

Limitation: the 50 m² figure is a maximum capacity, not a bedroom recommendation.

Noise from 26.5 dBRoom 50 m²CADR 250 m³/h
Check price on Amazon UKSponsored link · no live price shown

Compare them side by side

Levoit Core 300S Levoit Vital 100S Winix Zero Compact
Sleep-mode noise 22 dB 24 dB (23 dB also stated in main copy) —
Noise range — — 26.5–53.7 dB
CADR — 243 m³/h 250 m³/h
Room size claim 50 m² at 2 ACH; 100 m² at 1 ACH 20.8 m² at 5 ACH; 1,120 ft² at 1 ACH 50 m² maximum capacity
Lights in sleep Display lights off Display lights off in darkness Control-panel lights off
Filter interval 6–8 months 8–12 months 12 months (WINIX Filter O)
Power — — 12–55 W
Amazon UK View on Amazon UK View on Amazon UK View on Amazon UK

— = no figure in the checked manufacturer source. ACH = air changes per hour.

Sources and how we chose

We reviewed manufacturer product pages and specifications only. Gearjury has not physically tested these purifiers, and this packet contains no laboratory or user-review data. The models appear in a fixed order and no overall winner is declared. Amazon UK links are affiliate links that may earn a commission; they do not change the order or the data.

Sources, checked 13 Oct 2026: