Winix A Air Filter
Score: 88/100
Blueair Blue Pure 511i Max Replacement Filter
Score: 92/100Rankings
The Blueair Blue Pure 511i Max Genuine Replacement Filter is a high-performance filter featuring HEPASilent technology that captures 99.97% of particles down to 0.1 microns. It offers excellent odor control with its carbon layer and a washable pre-filter, though it is limited to the 511i Max model. Ideal for medium-sized rooms where quiet operation and smart home integration are priorities.
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.
| Attribute | | |
|---|---|---|
12 monthsbest | 9 months | |
— | 351 sq_ftbest | |
— | 174 cfmbest | |
99.99 percentbest | 99.97 percent | |
| ↓ lower better | 0.003 micronsbest | 0.1 microns |
2 | 4best | |
| ↓ lower better | 1.1 lbs | 0.485 lbsbest |
5best | — |
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 | Blue Pure 511i Max |
Maintenance & Lifespan(2) | ||
Replacement Interval (months) | 12 months | 9 months |
Washable | false | true |
Compliance & Safety(1) | ||
Certifications | AHAM Verifide, CARB Certified, Intertek Zero Ozone Verified | |
Physical & Packaging(2) | ||
Weight (lbs) | 1.1 lbs | 0.485 lbs |
Dimensions | 16.6 x 14.1 x 2.2 | 11.2 x 2.7 x 8.7 |
Filtration Performance(8) | ||
Filtration Standard | H13 True HEPA | HEPASilent |
Coverage Area (sq_ft) | sq_ft | 237-465 sq_ft |
Clean Air Delivery Rate (cfm) | cfm | 152-174 cfm |
Filtration Efficiency (percent) | 99.99 percent | 99.97 percent |
Minimum Particle Size Captured (microns) | 0.003 microns | 0.1 microns |
Filter Stages | 2 | 4 |
Air Changes Per Hour (ach) | ach | 4.8 ach |
Pre-Filter Type | Activated Carbon | Washable Fabric |
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 four-stage HEPASilent filtration system as a superior alternative to traditional HEPA filters due to its quiet operation and energy efficiency. Experts note that the CADR ratings of 152-174 CFM make it highly effective for medium-sized rooms between 237-465 square feet.
Everyday users generally praise the hassle-free replacement process and the filter's effectiveness in managing common allergens like pollen and pet dander. Recurring themes include satisfaction with odor control for light household smells such as cooking and pets.
