Main trade-off
Levoit Core 300-P
It has no air-quality sensor, Auto mode or Wi-Fi.
Head-to-head
Choose the Core 300S-P for automatic fan changes, schedules and lower rated power. The Core 300-P suits people who only want local controls.
Before you choose
At five air changes per hour and an eight-foot ceiling, Levoit Core 300-P calculates to about 215 square feet and Levoit Core 300S-P to 212.
What this is based on
Area = CADR × 60 / (ceiling feet × air changes per hour). Inputs are 143 and 141 CFM, 8 feet and 5 changes. Generic published CADR is used at maximum speed. Air mixing, furniture, open doors and filter loading affect real conditions.
Main trade-off
It has no air-quality sensor, Auto mode or Wi-Fi.
Main trade-off
RTINGS does not classify the current filter as formally HEPA-certified.


Choose the Core 300S-P for automatic fan changes, schedules and lower rated power. The Core 300-P suits people who only want local controls.
The smart model is not a room-size upgrade
Winner by situation
The same five-change, eight-foot-ceiling calculation gives about 215 and 212 square feet. That tiny difference is not a useful reason to choose one. App control and automatic sensing are more relevant distinctions.
Allow 8.7 inches of width and 8.7 inches of depth for Levoit Core 300-P, or 8.7 by 8.7 for Levoit Core 300S-P. Intake clearance is extra, so measure the gap in both directions.
Levoit Core 300S-P has app control. Levoit Core 300-P uses local controls, which suits a fixed routine but cannot meet a remote-control requirement.
At ten feet and five air changes, the modeled room areas fall to 172 square feet for Levoit Core 300-P and 169 for Levoit Core 300S-P. That is 20% less floor area than the eight-foot example because the purifier has more air to move.
What matters in practice
At five air changes per hour and an eight-foot ceiling, Levoit Core 300-P calculates to about 215 square feet and Levoit Core 300S-P to 212.
Area = CADR × 60 / (ceiling feet × air changes per hour). Inputs are 143 and 141 CFM, 8 feet and 5 changes. Generic published CADR is used at maximum speed. Air mixing, furniture, open doors and filter loading affect real conditions.
Levoit Core 300-P occupies a 75.7-square-inch cabinet envelope versus 75.7 for Levoit Core 300S-P. A shallower shape can still need more wall width.
Width × depth: 8.7 × 8.7 = 75.7 in² and 8.7 × 8.7 = 75.7 in². These are cabinet bounding rectangles, excluding required air clearance.
The Core 300S-P cuts rated input by about 59% while keeping the same cabinet footprint as the Core 300-P.
(56 - 23) / 56 × 100 = 58.9%. Both are 8.7 × 8.7 inches. This compares nameplate power, not measured power at equal sound or airflow.
Try your real numbers
The result checks hard limits only. Preferences stay out of the calculation.
143 CFM of verified clean-air delivery gives about 3.6 air changes per hour here. The 5 ACH target needs 200 CFM. Use the original filter at maximum speed. Sleep and other replacement filters are not rated here.
No comparable verified smoke CADR is stored for this exact model.
This uses maximum-speed, pollutant-specific CADR and a five-air-changes-per-hour target. Quieter settings deliver less clean air. It does not substitute raw airflow or a one-change coverage claim.

Levoit, Core 300
The straightforward non-Wi-Fi Core 300, sized for a small bedroom and supported by a broad replacement-filter range.

Levoit, LAP-C301S-WUS
A compact, inexpensive smart cylinder with quiet controls and credible small-room performance.
Meaningful differences
| What changes | Levoit Core 300-P | Levoit Core 300S-P | Why it matters |
|---|---|---|---|
| Generic published CADR | 143 CFM | 141 CFM | These overall published ratings are kept separate from pollutant-specific results. |
| Cabinet width and depth | 8.7 × 8.7 in | 8.7 × 8.7 in | Match both dimensions to the actual gap and leave the manual clearance around the intakes. |
| Remote app control | No app | Included | Remote schedules matter when the purifier sits away from where you spend the day. |
| Automatic sensor response | Set speed manually | Included | An app and a pollution sensor perform different jobs. Schedules do not measure air quality. |
| Ionizer or electrostatic stage | none | none | Use this preference as a hard constraint if you want a purely mechanical filter path. |
| Published weight | 7.9 lb | 5.95 lb | A fixed location makes a heavy cabinet less troublesome than a daily move upstairs. |
| Rated power | 56 W | 23 W | Rated input is a ceiling comparison. Auto mode and lower fan settings change actual consumption. |
What you give up
What matters in practice
Levoit lists 143 generic CADR for the 300-P and 141 for the 300S-P. Their stated 4.8-change room sizes are 222 and 219 square feet, so automation is the practical reason to choose S.
Schedules turn the purifier on around your routine. The particle sensor changes airflow when room conditions change. The plain Core 300 has neither function.
The two models use the same 8.7-inch square placement envelope, while rated power falls from 56 to 23 watts. At full rated input for 24 hours, the difference is 0.792 kWh per day.
What the facts say
Useful conclusions from the current air purifiers comparison, followed by the checked facts used to reach them.
Only 14 of 70 models checked match every need here: “Wildfire smoke gets indoors”, “I have very little floor space”, and “I want it to react on its own”.
14 matching models from 70 checkedMatch countThe count uses the current product-to-need assignments for “Wildfire smoke gets indoors”, “I have very little floor space”, and “I want it to react on its own”. A need with no documented match does not count.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Levoit Core 300-P |
|
| |
| Levoit Core 300S-P |
|
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Ready to choose?
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You will set fan speed yourself
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You want the fan to react to particles
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