Winix A Air Filter
Score: 88/100
GermGuardian FLT4825
Score: 82/100Rankings
The Winix 115115 is a genuine OEM replacement filter set featuring H13 True HEPA filtration that captures 99.99% of particles down to 0.003 microns. It includes four activated carbon pre-filters for a full year of odor reduction, though the non-washable design and higher upfront cost are notable trade-offs. Best suited for pet owners and allergy sufferers who prioritize maximum filtration efficiency and warranty compliance.
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.
| Attribute | | |
|---|---|---|
12 monthsbest | 6 months | |
— | 728 sq_ftbest | |
— | 140 cfmbest | |
99.99 percentbest | 99.97 percent | |
| ↓ lower better | 0.003 micronsbest | 0.1 microns |
2 | 3best | |
| ↓ lower better | 1.1 lbs | 0.35 lbsbest |
5best | 1 |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Compatibility & Fit(1) | ||
Compatible Models | 5300, 5300-2, 5500, 5500-2, 6300, 6300-2, P300, C535, AM90, C909, 9500, 9800 | GermGuardian AC4825 Series |
Maintenance & Lifespan(1) | ||
Replacement Interval (months) | 12 months | 6 months |
Physical & Packaging(3) | ||
Weight (lbs) | 1.1 lbs | 0.35 lbs |
Dimensions | 16.6 x 14.1 x 2.2 | 4.76 x 1.29 x 15.77 |
Package Quantity | 5 | 1 |
Filtration Performance(7) | ||
Filtration Standard | H13 True HEPA | True HEPA |
Coverage Area (sq_ft) | sq_ft | 728 sq_ft |
Clean Air Delivery Rate (cfm) | cfm | 140 cfm |
Filtration Efficiency (percent) | 99.99 percent | 99.97 percent |
Minimum Particle Size Captured (microns) | 0.003 microns | 0.1 microns |
Filter Stages | 2 | 3 |
Pre-Filter Type | Activated Carbon | Pre-filter |
Products in the top-left offer the best value (high score, low price).
Professional sources emphasize the genuine component advantage, noting that Winix America's official product page highlights engineered optimization for airflow and particle capture. The True HEPA distinction is a key differentiator, with specifications exceeding competitor claims by capturing particles down to 0.003 microns rather than the standard 0.3 microns.
Users consistently report noticeable air quality improvements and appreciate the convenience of a true one-year supply that reduces oversight. Installation is generally described as easy with clear instructions. However, recurring complaints focus on price point shock regarding original pricing, filter availability issues causing frustration during urgent needs, and confusion over model-specific installation requirements for certain units.
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.
