Winix A Air Filter
Score: 88/100
GermGuardian FLT5250PT
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 GermGuardian FLT5250PT is a high-capacity True HEPA replacement filter featuring anti-microbial Pet Pure treatment to inhibit mold and bacteria. It offers 99.97% filtration efficiency at 0.1 microns with a large 13.0 sq ft surface area. It is best suited for pet owners and allergy sufferers needing extended filter freshness.
| Attribute | | |
|---|---|---|
12 monthsbest | 6 months | |
99.99 percentbest | 99.97 percent | |
| ↓ lower better | 0.003 micronsbest | 0.1 microns |
2 | 3best | |
| ↓ lower better | 1.1 lbs | 0.5 lbsbest |
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 | AC5250PT, AC5000E, AC5300B, AC5350B, AC5350W, AP2800CA, BXAP250, IAP-GG-125 |
Maintenance & Lifespan(1) | ||
Replacement Interval (months) | 12 months | 6 months |
Physical & Packaging(3) | ||
Weight (lbs) | 1.1 lbs | 0.5 lbs |
Dimensions | 16.6 x 14.1 x 2.2 | 1.75 x 19.25 x 4.75 |
Package Quantity | 5 | 1 |
Filtration Performance(5) | ||
Filtration Standard | H13 True HEPA | True HEPA |
Filtration Efficiency (percent) | 99.99 percent | 99.97 percent |
Minimum Particle Size Captured (microns) | 0.003 microns | 0.1 microns |
Filter Stages | 2 | 3 |
Target Contaminants | VOCs, Odors, Particles, Allergens, Smoke | dust, pollen, pet dander, mold spores, odor-causing bacteria |
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 highlight superior filtration capacity and the key differentiator of anti-microbial Pet Pure treatment for extended freshness.
Everyday users express strong satisfaction with pet dander management and odor reduction, appreciating the extended freshness from anti-microbial treatment.
