GermGuardian FLT5250PT
Score: 88/100
Nispira HEPA Replacement Filter
Score: 75/100Rankings
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 Nispira AER1 is a replacement air filter designed for Holmes and Bionaire air purifiers, featuring a two-stage filtration system that combines HEPA technology with activated carbon. It captures airborne particles as small as 0.3 microns while simultaneously removing household odors, smoke, and volatile organic compounds (VOCs). The product is available in various pack configurations to suit different maintenance schedules.
| Attribute | | |
|---|---|---|
6 monthsbest | 6 monthsbest | |
99.97 percentbest | 99.97 percentbest | |
| ↓ lower better | 0.1 micronsbest | 0.3 microns |
3best | — | |
| ↓ lower better | 0.5 lbs | 0.001 lbsbest |
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 | Holmes HAP242-NUC, HAPF30AT-U4R, CAP531-U, CAP529-U, HAP240, HAP242, HAP412, HAP422, HAP424, HAP706, HAP716, HAP9240, HAP9242, HAP9412, HAP9414, HAP94, Bionaire BAP260, BAP815, BAP9700 |
Physical & Packaging(2) | ||
Weight (lbs) | 0.5 lbs | 0.0006 lbs |
Dimensions | 1.75 x 19.25 x 4.75 | 1.2 x 10 x 4.6 |
Filtration Performance(4) | ||
Filtration Standard | True HEPA | True HEPA + Activated Carbon |
Minimum Particle Size Captured (microns) | 0.1 microns | 0.3 microns |
Target Contaminants | dust, pollen, pet dander, mold spores, odor-causing bacteria | Cooking smells, smoke, pet odors, VOCs |
Pre-Filter Type | Activated Carbon | Carbon Sheet |
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.
