
Winix A Air Filter
Score: 88/100
Levoit Core 300-P
Score: 88/100Rankings

The Winix 115115 is a genuine OEM replacement filter set featuring H13 True HEPA filtration that captures 99.99% of particles down to 0.003 microns. It includes four activated carbon pre-filters for a full year of odor reduction, though the non-washable design and higher upfront cost are notable trade-offs. Best suited for pet owners and allergy sufferers who prioritize maximum filtration efficiency and warranty compliance.

The Levoit Core 300 Replacement Filter (Pet Allergy version) is a genuine 3-stage filtration replacement designed for Levoit Core 300 series air purifiers. It features an upgraded activated carbon filter enhanced with ARC formula to neutralize pet odors and VOCs, alongside a HEPA-grade main filter. It is best suited for pet owners in small to medium rooms seeking relief from shedding pets and allergy sufferers.
| Attribute | ![]() | ![]() |
|---|---|---|
12 monthsbest | 6 months | |
— | 219 sq_ftbest | |
— | 145 cfmbest | |
99.99 percentbest | 99.97 percent | |
| ↓ lower better | 0.003 micronsbest | 0.3 microns |
2 | 3best | |
| ↓ lower better | 1.1 lbsbest | 1.17 lbs |
5best | 1 |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Compatibility & Fit(1) | ||
Compatible Models | 5300, 5300-2, 5500, 5500-2, 6300, 6300-2, P300, C535, AM90, C909, 9500, 9800 | Levoit Core 300 Series |
Maintenance & Lifespan(1) | ||
Replacement Interval (months) | 12 months | 6 months |
Physical & Packaging(3) | ||
Weight (lbs) | 1.1 lbs | 1.17 lbs |
Dimensions | 16.6 x 14.1 x 2.2 | 7.48 x 6.3 x 7.48 inches |
Package Quantity | 5 | 1 |
Filtration Performance(8) | ||
Filtration Standard | H13 True HEPA | HEPA-grade |
Coverage Area (sq_ft) | sq_ft | 219 sq_ft |
Clean Air Delivery Rate (cfm) | cfm | 145 cfm |
Filtration Efficiency (percent) | 99.99 percent | 99.97 percent |
Minimum Particle Size Captured (microns) | 0.003 microns | 0.3 microns |
Filter Stages | 2 | 3 |
Air Changes Per Hour (ach) | ach | 5 ach |
Pre-Filter Type | Activated Carbon | Non-woven fabric |


Products in the top-left offer the best value (high score, low price).

Professional sources emphasize the genuine component advantage, noting that Winix America's official product page highlights engineered optimization for airflow and particle capture. The True HEPA distinction is a key differentiator, with specifications exceeding competitor claims by capturing particles down to 0.003 microns rather than the standard 0.3 microns.
Users consistently report noticeable air quality improvements and appreciate the convenience of a true one-year supply that reduces oversight. Installation is generally described as easy with clear instructions. However, recurring complaints focus on price point shock regarding original pricing, filter availability issues causing frustration during urgent needs, and confusion over model-specific installation requirements for certain units.

Professional reviewers praise the lab-tested performance of the Levoit Core 300 Pet Allergy filter, highlighting its strong CADR scores across smoke, dust, and pollen categories. Experts note that the upgraded activated carbon content beyond the standard 50 grams excels at capturing allergens and neutralizing odors effectively without requiring separate replacement units.
Everyday consumers rate the product highly for its easy assembly and effective pet deodorizing capabilities. Recurring themes in user feedback include strong odor control and significant allergen reduction, though some users express frustration with the frequent replacement schedule and occasional stock availability issues.

