Winix A Air Filter
Score: 88/100
Nispira HEPA Replacement Filter
Score: 75/100Rankings
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.
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 | | |
|---|---|---|
12 monthsbest | 6 months | |
99.99 percentbest | 99.97 percent | |
| ↓ lower better | 0.003 micronsbest | 0.3 microns |
2best | — | |
| ↓ lower better | 1.1 lbs | 0.001 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 | 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 |
Maintenance & Lifespan(1) | ||
Replacement Interval (months) | 12 months | 6 months |
Physical & Packaging(3) | ||
Weight (lbs) | 1.1 lbs | 0.0006 lbs |
Dimensions | 16.6 x 14.1 x 2.2 | 1.2 x 10 x 4.6 |
Package Quantity | 5 | 1 |
Filtration Performance(5) | ||
Filtration Standard | H13 True HEPA | True HEPA + Activated Carbon |
Filtration Efficiency (percent) | 99.99 percent | 99.97 percent |
Minimum Particle Size Captured (microns) | 0.003 microns | 0.3 microns |
Target Contaminants | VOCs, Odors, Particles, Allergens, Smoke | 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 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.
