Model differences
Core 300-P or Core 300S-P: same size, different controls
The Levoit Core 300-P and Core 300S-P are easy to confuse because they share the small cylindrical body, nearly the same published room rating and a similar product name. The suffix changes the routine more than the footprint. The 300-P uses direct buttons and three manual fan speeds; the 300S-P adds connected controls and a particle sensor that can run Auto Mode. Start by asking whether those connected features are useful to you, then check the room figure and the filter instructions for the exact suffix.
What stays similar
Both current US pages list a body 8.7 inches wide, 8.7 inches deep and 14.2 inches high. Their manuals ask for 15 inches of clearance on every side, so neither becomes a good fit for a closed cabinet just because the cylinder is compact. Both packages include a pre-installed original filter, and each manual asks you to remove its plastic wrapping before switching on. The two versions are near the same small-room tier, but their room-size ratings are published on pages with different values and the 300-P manual adds its own 5-ACH and 2-ACH table. Do not treat a one-change headline as a fast-cleaning equivalent.
| Question | Core 300-P | Core 300S-P |
|---|---|---|
| Room rating at 4.8 ACH | 222 sq ft on the current product page | 219 sq ft on the current product page |
| Smoke CADR | 143 CFM | 141 CFM |
| App control | No app feature documented for the exact P model | VeSync app control and updates documented |
| Particle response | Three manual speeds; no sensor or Auto Mode documented in the P manual | AirSight Plus particle sensing and Auto Mode |
| On-unit PM2.5 number | No numeric particle reading documented | Color indicator; numeric PM2.5 updates are in the app, not a local numeric display |
| Listed body | 8.7 × 8.7 × 14.2 in | 8.7 × 8.7 × 14.2 in |
Choose by the control routine
The 300-P works from its physical buttons. Its manual describes low, medium and high fan settings, Sleep Mode, a 2/4/6/8-hour timer, display lock and display-off control. It does not describe Wi-Fi, VeSync, an automatic sensor response or a numeric air-quality display. A lower promotional block on the P product page mentions the 300S-P by name; do not mistake that shared page copy for a 300-P capability. The exact P-series manual and product identity should guide the choice.
The 300S-P suits a household that will use remote control, schedules or particle-responsive Auto Mode. Its sensor indicates particles; it is not a gas detector. The on-unit color ring does not provide the numeric PM2.5 reading, which the manual places in VeSync. If what you want is an appliance you can run directly without app pairing, that connected feature set may add little. If remote status or automated fan changes matter, the ordinary 300-P cannot supply them.
Read the room figure and maintenance notes carefully
The 300-P page lists 222 square feet at 4.8 air changes per hour and 1,066 square feet at one air change per hour. Its manual instead reports 222 square feet at five ACH and 511 at two ACH, and its troubleshooting page says purification takes longer above 219 square feet. The 300S-P page lists 219 square feet at 4.8 ACH and 1,051 at one ACH, while the linked 300S-P-series manual has its own specification differences. The close 4.8-ACH values place both in a similar small-room class; they do not prove every manual figure is identical. For a room at the boundary, use the exact model's manual and allow for height, doorways, furniture and fan speed.
The P model's manual says to clean its pre-filter every two to four weeks and gives six to eight months as its usual filter-replacement interval. The 300S-P manual has the same frequent outer-filter cleaning interval, but its check reminder and app can make filter monitoring more convenient. For either version, the all-side clearance, unpacking and replacement routine still matter. Compare the Core 300-P review and the Core 300S-P review for the exact package details, or use the finder to require app control only if you will actually use it.