GermGuardian FLT4825
Score: 82/100
Levoit Core 300-P
Score: 82/100Rankings
GermGuardian HEPA PURE filters are genuine OEM replacement filters designed for specific GermGuardian air purifier models. They feature a multi-layer design combining True HEPA media that captures 99.97% of particles as small as 0.1 microns, an activated carbon layer for odor and VOC reduction, and pre-filters to trap larger debris. Best suited for allergy sufferers and pet owners in medium-sized rooms.
The Levoit Core 300 Replacement Filter is an official H13 True HEPA cartridge designed for small spaces, capturing 99.97% of particles down to 0.3 microns. It offers reliable allergen and odor removal but lacks specific CADR data and is limited to smaller room sizes. It is best suited for owners of the Core 300/300S seeking genuine OEM replacement parts.
| Attribute | | |
|---|---|---|
6 months | 8 monthsbest | |
728 sq_ftbest | — | |
140 cfmbest | — | |
99.97 percentbest | 99.97 percentbest | |
| ↓ lower better | 0.1 micronsbest | 0.3 microns |
3best | 3best | |
| ↓ lower better | 0.35 lbsbest | 0.88 lbs |
1best | 1best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Compatibility & Fit(1) | ||
Compatible Models | GermGuardian AC4825 Series | Core 300, Core 300S |
Maintenance & Lifespan(1) | ||
Replacement Interval (months) | 6 months | 8 months |
Physical & Packaging(2) | ||
Weight (lbs) | 0.35 lbs | 0.88 lbs |
Dimensions | 4.76 x 1.29 x 15.77 | 7.48 x 6.3 x 7.48 |
Filtration Performance(3) | ||
Filtration Standard | True HEPA | H13 True HEPA |
Minimum Particle Size Captured (microns) | 0.1 microns | 0.3 microns |
Pre-Filter Type | Pre-filter | Non-washable Pre-filter |
Products in the top-left offer the best value (high score, low price).
Professional reviewers highlight the GermGuardian HEPA PURE filters as industry-standard solutions that effectively capture 99.97% of particles on the first pass. They note efficient airflow paths comparable to competitors like Honeywell, with clean times around 23 minutes for test rooms.
Everyday users commonly praise the filters for their excellent capture of pet dander and dust, as well as noticeable reductions in smoke and household odors. Recurring complaints focus on the need for frequent replacements every six months, issues with off-brand alternatives not fitting or working well, and perceptions that the lightweight build feels flimsy.
No direct expert reviews from major publications were found in the research data. Product pages emphasize official authenticity as essential for maintaining peak performance and sustaining 99.97% filtration efficiency, positioning HEPASmart technology as a key enhancement for small spaces.
Feedback is sparse but positive among those who have purchased it. Users praise its effectiveness as a replacement that matches OEM quality.
