Levoit Core 300S vs Core 300P
Same price, same size, same footprint. The difference is in the filter configuration and who each model is designed for. Here is how to pick the right one.
Get the 300S for allergies and sleep. Get the 300P for pets and odors.
The Core 300S and Core 300P are nearly identical units. The meaningful difference is the filter each one is designed to use. The 300S is optimized for allergens and particles. The 300P uses a pet-specific filter with a thicker carbon layer for odor capture. Both are priced the same, so the decision comes down entirely to which filter matches your situation.
Side-by-Side Specs
| Spec | Levoit Core 300S | Levoit Core 300P |
|---|---|---|
| Price | Budget tier (smart SP version about double) | Budget tier, same as 300S |
| CADR | 141 CFM | 143 CFM |
| Coverage area | 219 sq ft | 222 sq ft |
| Noise on low | 22 dB | 24 dB |
| Rated power | 23 W | 56 W |
| True HEPA | Yes | Yes |
| Activated carbon | Standard layer | Thicker pet-specific layer |
| Auto-dim sleep mode | Yes | No |
| App / Wi-Fi | SP version only | No |
| Scheduling | SP version only | No |
| Primary filter design | Allergen / general particle | Pet dander and odor |
| Footprint | Compact cylinder | Compact cylinder |
| Smart features | SP version (app, sensor) | None |
What They Share
The Core 300S and Core 300P are built on the same platform: the same cylindrical form factor, the same true HEPA filtration, the same filter replacement cycle, and effectively the same clean-air delivery, 141 CFM for the 300S and 143 for the 300P over a single room of about 220 sq ft. The gaps are minor. The 300S runs a little quieter on its lowest speed, 22 dB against 24 dB, and draws far less power, 23 W against 56 W, while the 300P is rated for a few more square feet, 222 against 219. Set them side by side and you would be hard pressed to tell them apart.
Both sit at the same budget price point. Both are among the most practical budget air purifiers available for single-room use. The decision between them is almost entirely about which filter configuration matches your situation.
The Filter Is the Meaningful Difference
The Core 300S uses a standard HEPA filter with a carbon layer that is adequate for everyday odor control and particle filtration. It performs well for dust, pollen, dust mite allergens, and general household particles.
The Core 300P uses a pet-specific filter that includes a thicker activated carbon layer designed to handle the higher VOC and odor compound load that comes with pet ownership. Dogs and cats produce not just dander but body oils, saliva residue, and other organic compounds that a standard carbon layer does not capture as effectively. If pet odor is part of the problem, the 300P’s filter addresses it more directly.
Can you use a 300P filter in a 300S, or vice versa?
Yes. The filter dimensions are compatible across the Core 300 platform. This means if you own a Core 300S but get a pet and odor becomes a concern, you can switch to the 300P pet filter on the next replacement without buying a new unit. The smart and auto features of the 300S work with any compatible filter. This interchangeability makes the platform more flexible than it appears from the model names alone.
How the Filtration Compares
Both units run the same three-stage path: a pre-filter for large particles and hair, a True HEPA filter, and an activated carbon layer. True HEPA is defined as capturing at least 99.97 percent of airborne particles at 0.3 microns, the size band that includes fine dust, pollen fragments, and dust mite allergen particles. Because the 300S and 300P share the same HEPA media and deliver almost the same airflow, 141 and 143 CFM of clean-air delivery, their particle capture is equivalent. A particle count taken in the same room would read the same from either unit.
The divergence sits entirely in the carbon stage. Carbon works by adsorption, holding gaseous odor and VOC molecules on its surface rather than straining them out the way the HEPA layer catches particles. The 300P pet filter carries a heavier carbon load, so it has more adsorption capacity before the layer saturates. That is why it holds up longer against the steady odor load a dog or cat produces, while the particle side of the job stays identical to the 300S.
On the physical side they are nearly the same: single-room coverage of about 220 sq ft (219 for the 300S, 222 for the 300P) and a quiet lowest speed (22 dB for the 300S, 24 dB for the 300P), both easy to leave running overnight. Clean-air delivery is effectively equal, 141 CFM against 143. The filter is the decision.
Where the 300S Has the Edge
The Core 300S has the better feature set for bedroom use. The auto-dim sleep mode, which turns off the indicator light when the room darkens, solves the most common reason people turn off bedroom purifiers at night. The 300P does not have this feature. If you run the purifier overnight in a dark bedroom, the 300S is noticeably more sleep-friendly.
The SP version of the Core 300S adds app control, scheduling, and a built-in air quality sensor for roughly double the base 300S price. This makes it the only smart option in the Core 300 lineup. If you want to schedule pre-sleep high-speed runs that drop to quiet low automatically, the SP version is the only path to that.
Where the 300P Has the Edge
The thicker activated carbon in the pet filter is the 300P’s primary advantage. For households with one or two pets where odor is noticeable alongside dander, the 300P filter handles the gaseous odor compounds more effectively than the standard 300S filter. The HEPA performance is equivalent between both; the carbon is where they diverge.
The 300P is also the simpler unit. No app, no Wi-Fi, no smart features to configure. Three speeds, a filter change indicator, and a button. For people who want a no-setup air purifier that just runs, the 300P requires nothing of the user in a way the 300S-P does not.
The Products
Levoit Core 300S
Best for bedrooms, allergy sufferers, and anyone who wants sleep mode features. The SP version adds app control, scheduling, and an air quality sensor. Compatible with the Core 300P pet filter if your needs change.
Levoit Core 300P
Best for pet owners where dander and odor are both concerns. The pet-specific filter includes a thicker carbon layer than the standard 300S filter. Simple no-app operation. Same coverage area and noise level as the 300S.
Frequently Asked Questions
Is the Core 300S the same as the Core 300?
No. The original Core 300 was a non-smart unit without Wi-Fi or app connectivity. The Core 300S added smart features in the SP version. The naming is confusing because Levoit uses “S” to indicate the smart platform and “P” to indicate the pet filter variant. The Core 300, Core 300S, and Core 300P are three distinct products on the same physical platform with different feature and filter configurations.
I have both allergies and a pet. Which should I get?
The Core 300P with a pet filter if odor is noticeable, or the Core 300S with a standard filter if allergen control is the primary concern and odor is minor. The most flexible option is the Core 300S-P (SP version), which gives you smart features and is compatible with the pet filter when you want to switch. If budget is tight and both concerns are real, the 300P and its pet filter address the higher combined load more directly than the standard 300S filter.
Does the thicker carbon in the 300P filter make a noticeable difference?
For pet odor specifically, yes. The difference is more apparent in smaller rooms where odor concentrations build faster, and in households where pets spend significant time on upholstered furniture. In a large, well-ventilated home with one small cat, the difference between the two filters is likely not noticeable day to day. In a smaller apartment with a dog that spends time on the sofa, the pet filter’s additional carbon capacity produces a measurable improvement in odor control.
What is the difference between the Core 300P and the Core 300S-P?
The 300P is the pet filter variant on the non-smart Core 300 body: three speeds, a filter indicator, no app. The 300S-P is the smart version, adding Wi-Fi, app control, scheduling, and an air quality sensor, and it accepts the same filters. If you want smart control and pet odor handling together, run a pet filter in the 300S-P. If you only need odor control and no app, the 300P is the simpler and lower-cost route to the same carbon layer.
Which Core 300 model is better for a bedroom?
The Core 300S, for the auto-dim sleep mode that turns the indicator light off when the room goes dark. That one feature is the most common reason people reach over and switch a purifier off at night, and the 300P does not have it. If you also want the unit to run high before bed and drop to quiet low on its own, the smart 300S-P adds the scheduling to do that.