
Honeywell HRF-U1
Score: 75/100
Appliancemates HPA300 Replacement Filter
Score: 82/100Rankings

The Appliancemates HPA300 HEPA Replacement Filter meets HEPA 13 and MERV 17 standards, offering 99.97% efficiency for particles 0.3 microns and larger. The inclusion of 6 carbon pre-filters helps extend the life of the main HEPA filters, providing good value for Honeywell HPA300 series owners. While it lacks specific certification data, it is a reliable choice for users seeking high-efficiency filtration.

The Honeywell HEPA-Type filter is a genuine replacement for HHT270/290 series purifiers, offering dual-layer filtration for allergens and odors. Its main drawback is the frequent four-month replacement cycle and lower particle capture efficiency compared to True HEPA. It is ideal for users of Honeywell tabletop/tower purifiers needing reliable, certified performance.
| Attribute | ![]() | ![]() |
|---|---|---|
4 months | 12 monthsbest | |
99 percent | 99.97 percentbest | |
| ↓ lower better | 2 microns | 0.3 micronsbest |
2best | — | |
| ↓ lower better | 0.29 lbsbest | — |
1 | 9best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Compatibility & Fit(1) | ||
Compatible Models | Honeywell HHT270, HHT290 Series | Honeywell HPA300 Series |
Maintenance & Lifespan(1) | ||
Replacement Interval (months) | 4 months | 12 months |
Physical & Packaging(3) | ||
Weight (lbs) | 0.29 lbs | lbs |
Dimensions | 1.0 x 10.0 x 5.0 | 6.5 x 1.6 x 10.2 |
Package Quantity | 1 | 9 |
Filtration Performance(4) | ||
Filtration Standard | HEPA-Type | HEPA 13 / MERV 17 |
Filtration Efficiency (percent) | 99 percent | 99.97 percent |
Minimum Particle Size Captured (microns) | 2 microns | 0.3 microns |
Target Contaminants | Dust, pollen, smoke, pet dander, mold spores, dust mites, VOCs, household odors | Dust, Pollen, Allergens |

Products in the top-left offer the best value (high score, low price).

Professional reviewers highlight the filter's dual-layer design as highly effective for managing both allergens and odors in tabletop and tower purifiers.
Everyday users rate the filter highly, praising its ability to reduce dust, pollen, smoke, and odors effectively.

