The catch
Levoit Vital 100S-P
Its 222 sq ft room label limits what it can do in a larger room.
Side by side
In a smaller room, the shallow body and washable prefilter make the Vital 100S-P easier to place and keep up, so pick it there. Once your room exceeds Vital's published 222-square-foot rating at 4.8 air changes per hour, pick the Core 400S-P. VeSync control comes with both, so needing an app doesn't by itself justify the larger purifier.
Before you buy
On the maker's stated 4.8 ACH basis, a 300 sq ft room is larger than Vital's 222 sq ft label and smaller than Core's 358 sq ft label. That makes Core the candidate to size further for that room. It is no promise that a quiet fan mode reaches the same coverage.
Where this comes from
300 - 222 = 78 sq ft over Vital's label, and 358 - 300 = 58 sq ft under Core's label. Both published area figures are based on 4.8 ACH.
The catch
Its 222 sq ft room label limits what it can do in a larger room.
The catch
The combined filter on it cannot be washed.


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Room size, shallow placement and filter care are compared for the Levoit Vital 100S-P and Core 400S-P, showing when more airflow matters and when the smaller body helps.
In a smaller room, the shallow body and washable prefilter make the Vital 100S-P easier to place and keep up, so pick it there. Once your room exceeds Vital's published 222-square-foot rating at 4.8 air changes per hour, pick the Core 400S-P. VeSync control comes with both, so needing an app doesn't by itself justify the larger purifier.
Which one fits
Vital falls short of that area. Core's label covers it, depending on ceiling height, placement and fan setting.
The separate washable part comes with Vital. Core's combined filter has to stay dry.
The connected and automatic controls requested are on both.
Vital's body measures 6.3 inches deep and Core's 10.8 inches. Vital still needs the operating clearance it requires.
A numeric display is listed for Core, while Vital relies on the air-quality indicator-ring interface.
In practice
On the maker's stated 4.8 ACH basis, a 300 sq ft room is larger than Vital's 222 sq ft label and smaller than Core's 358 sq ft label. That makes Core the candidate to size further for that room. It is no promise that a quiet fan mode reaches the same coverage.
300 - 222 = 78 sq ft over Vital's label, and 358 - 300 = 58 sq ft under Core's label. Both published area figures are based on 4.8 ACH.
Vital's bounding base takes up about 79.4 square inches against 116.6 for Core, yet Vital is 1.8 inches wider. Vital can suit a shallow spot along a wall, and Core can suit a narrow opening. Neither calculation counts the airflow space that is required.
12.6 × 6.3 = 79.38 in² and 10.8 × 10.8 = 116.64 in². Core is narrower by 12.6 - 10.8 = 1.8 inches.
You can rinse the separate prefilter on the Vital. Core calls for dry cleaning of its outer surface. Each still needs its main filter replaced, so picking Vital for washability does not make the whole filtration system a permanent filter.
The product page for Vital lists a washable prefilter and a separate main filter. Core's US manual says to brush or vacuum and forbids washing the combined filter.
Plug in your numbers
This checks hard limits only. Personal preferences are left out of the math.
We do not have a comparable verified smoke CADR for this exact model.
231 CFM of verified clean-air delivery works out to about 5.8 air changes per hour in this room. Hitting the 5 ACH target takes 200 CFM.
This uses each model’s pollutant-specific CADR at top speed and a target of five air changes per hour. Quieter settings clean less air. Raw airflow and one-change coverage claims are never swapped in.

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Spec by spec
| Spec | Levoit Vital 100S-P | Levoit Core 400S-P | In practice |
|---|---|---|---|
| Published room rating at 4.8 ACH | 222 sq ft | 358 sq ft | Use the same circulation rate for both, and factor in ceiling height. |
| Published CADR | 143 CFM | 231 CFM | The labels here are current generic CADR values and not the result of a pollutant-specific head-to-head test. |
| Cabinet width and depth | 12.6 × 6.3 in | 10.8 × 10.8 in | Vital has the shallower body, Core the narrower. Intake clearance is on top of that. |
| Height and weight | 16 in and 8.6 lb | 20.5 in and 11 lb | Look at handling and vertical clearance apart from floor area. |
| Prefilter maintenance | Separate washable prefilter | Brush or vacuum the outer filter surface | The combined filter on Core must not be washed. |
| Air-quality interface | Indicator rings and VeSync app | Numeric PM2.5 display and VeSync app | Remote settings come with both, though the onboard readout is different. |
Trade-offs
Change of plan
Go with Levoit Core 400S-P. Core carries the larger label that applies. Confirm the ceiling height and fan setting.
Go with Levoit Vital 100S-P. Vital provides one.
Neither model fits. In this pair, each model satisfies just one of those requirements.
Decision guide
Pick the Vital 100S-P for a smaller room where the shallow body and washable prefilter ease placement and upkeep. Pick the Core 400S-P when your room is larger than Vital's published 222-square-foot rating at 4.8 air changes per hour. Both have VeSync control, so an app requirement alone is no reason to buy the larger purifier.
Measure the connected space the purifier will really serve and not just the area next to it. The current 4.8 ACH labels set these models meaningfully apart. A doorway into another occupied room, a high ceiling or low-speed operation can call for more airflow than the floor-area label suggests.
Core is narrower, while Vital is lower and shallower. Tape the cabinet outlines on the floor, then add the clearance the manual calls for. Squeezing a unit into a cupboard or behind furniture can cost it the placement advantage that made it attractive.
In a home with shedding pets, a removable washable prefilter can be convenient as long as it is fully dry before it goes back in. Core's outer surface needs brushing or vacuuming. Budget for the correct replacement filter, and follow the model-specific instructions instead of treating every Levoit filter alike.
By the numbers
What we found across the air purifiers we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Levoit Vital 100S-P |
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| Levoit Core 400S-P |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

A shallow cabinet suits a room inside its stated size range
See price & reviews on Amazon
A single purifier has to cover a larger room within the 358 sq ft rating
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