The catch
Levoit Core 300-P
Air-quality sensor, Auto mode and Wi-Fi are all absent.
Side by side
Get the Core 300S-P if you want automatic fan changes, schedules and lower rated power. The Core 300-P suits anyone who only wants local controls.
Before you buy
For Levoit Core 300-P the calculation gives about 215 square feet and for Levoit Core 300S-P 212, at five air changes per hour and an eight-foot ceiling.
Where this comes from
Area = CADR × 60 / (ceiling feet × air changes per hour). Inputs are 143 and 141 CFM, 8 feet and 5 changes. Generic published CADR at maximum speed is used. Air mixing, furniture, open doors and filter loading change real conditions.
The catch
Air-quality sensor, Auto mode and Wi-Fi are all absent.
The catch
The current filter is not classed by RTINGS as formally HEPA-certified.


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Automatic fan changes, schedules and lower rated power point to the Core 300S-P. The Core 300-P is for people who only want local controls.
Going smart does not buy a bigger room rating
Which one fits
Running the same five-change, eight-foot-ceiling calculation gives about 215 and 212 square feet. A gap that small is no real reason to choose one over the other. App control and automatic sensing are the more relevant differences.
Levoit Core 300-P needs 8.7 inches of width and 8.7 inches of depth, and Levoit Core 300S-P needs 8.7 by 8.7. Intake clearance is extra, so measure the gap in both directions.
App control comes with the Levoit Core 300S-P. Levoit Core 300-P relies on local controls, which fit a fixed routine but cannot satisfy a remote-control requirement.
Modeled at ten feet and five air changes, the room areas drop to 172 square feet for Levoit Core 300-P and 169 for Levoit Core 300S-P. Compared with the eight-foot example, that is 20% less floor area, because the purifier has more air to move.
In practice
For Levoit Core 300-P the calculation gives about 215 square feet and for Levoit Core 300S-P 212, at five air changes per hour and an eight-foot ceiling.
Area = CADR × 60 / (ceiling feet × air changes per hour). Inputs are 143 and 141 CFM, 8 feet and 5 changes. Generic published CADR at maximum speed is used. Air mixing, furniture, open doors and filter loading change real conditions.
Levoit Core 300-P has a 75.7-square-inch cabinet envelope, and Levoit Core 300S-P has 75.7 as well. 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. Both are cabinet bounding rectangles, and required air clearance is not counted.
Rated input drops by about 59% on the Core 300S-P, and its cabinet footprint stays the same as the Core 300-P.
(56 - 23) / 56 × 100 = 58.9%. Both measure 8.7 × 8.7 inches. The comparison is of nameplate power and does not reflect measured power at equal sound or airflow.
Plug in your numbers
This checks hard limits only. Personal preferences are left out of the math.
143 CFM of verified clean-air delivery works out to about 3.6 air changes per hour in this room. Hitting the 5 ACH target takes 200 CFM. Use the original filter at maximum speed. Sleep and other replacement filters are not rated here.
We do not have a comparable verified smoke CADR for this exact model.
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.

Levoit, Core 300
This is the plain Core 300 without Wi-Fi. It suits a small bedroom and has a wide range of replacement filters available.

Levoit, LAP-C301S-WUS
This inexpensive smart cylinder is compact, offers quiet controls and performs credibly in a small room.
Spec by spec
| Spec | Levoit Core 300-P | Levoit Core 300S-P | In practice |
|---|---|---|---|
| Generic published CADR | 143 CFM | 141 CFM | Pollutant-specific results are not mixed in with these overall published ratings. |
| Cabinet width and depth | 8.7 × 8.7 in | 8.7 × 8.7 in | Check both dimensions against the real gap, and keep the clearance the manual calls for around the intakes. |
| Remote app control | No app | Included | Remote schedules matter if the purifier sits far from where you spend your day. |
| Automatic sensor response | Set speed manually | Included | Apps and pollution sensors do separate jobs, and a schedule tells you nothing about air quality. |
| Ionizer or electrostatic stage | none | none | If a purely mechanical filter path is what you want, treat this preference as a firm requirement. |
| Published weight | 7.9 lb | 5.95 lb | A heavy cabinet bothers you less if it stays put than if it must go upstairs every day. |
| Rated power | 56 W | 23 W | Rated input is a comparison of upper limits. Actual consumption shifts with Auto mode and lower fan settings. |
Trade-offs
Decision guide
The Core 300S-P is the pick for automatic fan changes, schedules and lower rated power, and the Core 300-P fits people who want nothing beyond local controls.
Levoit lists generic CADR of 143 for the 300-P and 141 for the 300S-P. Their 4.8-change room sizes, as stated, are 222 and 219 square feet, so automation is the practical reason to choose the S.
A schedule starts the purifier around your routine, while the particle sensor adjusts airflow as room conditions shift. The plain Core 300 has neither function.
Both models fit the same 8.7-inch square placement envelope, yet rated power drops from 56 to 23 watts. Run at full rated input for 24 hours, the gap comes to 0.792 kWh per day.
By the numbers
What we found across the air purifiers we compare, plus the checked facts behind each finding.
Only 14 of the 70 models checked meet every need here: “Wildfire smoke makes its way inside”, “Floor space is very tight for me”, and “I want it to respond automatically”.
14 models fit, out of 70 checkedHow we countedThe count uses each product's current fit ratings for “Wildfire smoke makes its way inside”, “Floor space is very tight for me”, and “I want it to respond automatically”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Levoit Core 300-P |
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| Levoit Core 300S-P |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

Setting the fan speed is your own job
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The fan should respond to particles
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