GermGuardian FLT4850PT
Score: 82/100
Nispira HEPA Replacement Filter
Score: 75/100Rankings
The GermGuardian FLT4850PT is a True HEPA replacement filter with Pet Pure® treatment, designed to capture 99.97% of particles down to 0.1 microns while inhibiting microbial growth. It features an activated carbon pre-filter for odor control but lacks independent certification. It is ideal for pet owners with compatible 22-inch tower purifiers.
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 | |
170 sq_ftbest | — | |
99.97 percentbest | 99.97 percentbest | |
| ↓ lower better | 0.1 micronsbest | 0.3 microns |
| ↓ lower better | 0.35 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 | AC4300, AC4300BPT, AC4820, AC4825, AC4870, AC4900, AC4850PT, AC4880, CCDAP4500, AP2200CA | 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) | 0.35 lbs | 0.0006 lbs |
Dimensions | 1.29 x 15.77 x 4.76 | 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, mold spores, pet dander, hair, fur, odors | 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).
No professional reviewer or editor quotes, scores, or analyses appear in search results; information is limited to manufacturer and retailer specs emphasizing superior filtration over generics.
Limited user Q&A indicates confirmed compatibility and praise for effective pet odor reduction.
