
GermGuardian FLT5250PT
Score: 88/100
Leemone HEPA Replacement Filter
Score: 78/100Rankings

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 Leemone AER1 filter set is a cost-effective third-party replacement for Holmes and Bionaire purifiers, featuring H13 True HEPA filtration and carbon booster pre-filters. It offers a direct fit and high efficiency but lacks independent verification of its claims. It is ideal for budget-conscious users needing frequent replacements for pet dander and odor control.
| Attribute | ![]() | ![]() |
|---|---|---|
6 months | 12 monthsbest | |
99.97 percentbest | 99.97 percentbest | |
| ↓ lower better | 0.1 micronsbest | 0.3 microns |
3best | 2 | |
| ↓ lower better | 0.5 lbsbest | 0.6 lbs |
1 | 6best |
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 HAP240, HAP242, HAP412, HAP422, HAP424, HAP702, HAP706, HAP716, HAP1702, HAP2400, HAP9240-HAP9243, HAP9412; Bionaire aer1-ready |
Maintenance & Lifespan(1) | ||
Replacement Interval (months) | 6 months | 12 months |
Physical & Packaging(3) | ||
Weight (lbs) | 0.5 lbs | 0.6 lbs |
Dimensions | 1.75 x 19.25 x 4.75 | 10 x 2 x 10 |
Package Quantity | 1 | 6 |
Filtration Performance(5) | ||
Filtration Standard | True HEPA | H13 True HEPA |
Minimum Particle Size Captured (microns) | 0.1 microns | 0.3 microns |
Filter Stages | 3 | 2 |
Target Contaminants | dust, pollen, pet dander, mold spores, odor-causing bacteria | Dust, pet dander, pollen, mold, hair, lint, pets, cooking, smoking |
Pre-Filter Type | Activated Carbon | Carbon Booster |

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.




Professional coverage of the Leemone AER1 filter is sparse, with no major outlets like Wirecutter or Consumer Reports reviewing it specifically. Claims rely on manufacturer specifications and comparisons to official Holmes filters. One YouTube review of a similar third-party filter (Colorfullife) deemed it a worthwhile upgrade if it matches original Holmes filters, praising fit and initial filtration but noting the need for ongoing comparison.
User feedback is limited in search data, with no aggregated ratings or detailed testimonials provided. Common implied praise from product pages includes effective odor reduction and allergen capture, keeping purifiers at full capacity. A satisfaction guarantee is noted positively by users. Recurring complaints are not explicitly detailed, but potential issues include fit variability or reduced longevity compared to OEM filters due to its third-party nature.