
GermGuardian FLT5250PT
Score: 88/100
Winix H Air Filter
Score: 88/100Rankings

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.

The Winix 116130 Replacement Filter H is a genuine one-year filter set designed for Winix 5500-2 and AM80 air purifiers, combining True HEPA filtration with a washable Advanced Odor Control (AOC) Carbon filter. It captures 99.97% of allergens and reduces VOCs, backed by multiple industry certifications. It is best suited for allergy sufferers and households with cooking or smoke odors.
| Attribute | ![]() | ![]() |
|---|---|---|
6 months | 12 monthsbest | |
— | 360 sq_ftbest | |
99.97 percentbest | 99.97 percentbest | |
| ↓ lower better | 0.1 micronsbest | 0.3 microns |
3best | 2 | |
| ↓ lower better | 0.5 lbsbest | 2.16 lbs |
1best | 1best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Compatibility & Fit(1) | ||
Compatible Models | AC5250PT, AC5000E, AC5300B, AC5350B, AC5350W, AP2800CA, BXAP250, IAP-GG-125 | Winix 5500-2, AM80 |
Maintenance & Lifespan(2) | ||
Replacement Interval (months) | 6 months | 12 months |
Washable | false | true |
Physical & Packaging(2) | ||
Weight (lbs) | 0.5 lbs | 2.16 lbs |
Dimensions | 1.75 x 19.25 x 4.75 | 16.25 x 12.5 x 1.5 |
Filtration Performance(3) | ||
Minimum Particle Size Captured (microns) | 0.1 microns | 0.3 microns |
Filter Stages | 3 | 2 |
Pre-Filter Type | Activated Carbon | Carbon pre-filter |

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

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.




Official Winix and retailer sources emphasize reliable, high-performance filtration with the filter capturing 99.97% of allergens at 0.3 microns or 99.99% at 0.003 microns. Retail editors highlight its role in trapping pollen, mold, dust, pet dander, and smoke, positioning it as essential for optimal operation of the Winix 5500-2 purifier.
Search results lack direct user reviews, but compatible third-party filters imply satisfaction with similar performance. Recurring themes include praise for easy annual swaps and washable carbon convenience, though general filter categories often mention timely replacement needs.