
Honeywell HRFSS1
Score: 85/100
Funmit HPA300 Filter
Score: 75/100Rankings

The Honeywell HRFSS1 is a high-performance True HEPA filter designed for medium to large rooms, offering excellent allergen and smoke removal. Its main trade-off is the frequent replacement schedule for the pre-filter, which adds to maintenance costs. It is best suited for allergy sufferers and pet owners in medium-sized spaces.

The Funmit HPA300 is a budget-friendly, third-party HEPA filter replacement designed for Honeywell HPA300 series air purifiers. It offers standard filtration efficiency but lacks the activated carbon and pre-filters included in some OEM bundles. It is best suited for users seeking affordable bulk replacements for large-room purifiers.
| Attribute | ![]() | ![]() |
|---|---|---|
3 months | 4.5 monthsbest | |
465 sq_ftbest | — | |
99.97 percentbest | 99.97 percentbest | |
| ↓ lower better | 0.3 micronsbest | 0.3 micronsbest |
2best | 1 | |
| ↓ lower better | — | 2.8 lbsbest |
1 | 6best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Compatibility & Fit(1) | ||
Compatible Models | HPA3100/3200/3300, HPA5100/5150/5200/5250/5220, HPA5300/5350 Series | Honeywell HPA100/200/300/5000 series |
Maintenance & Lifespan(1) | ||
Replacement Interval (months) | 3 months | 3-6 months |
Compliance & Safety(1) | ||
Certifications | ENERGY STAR | Third-party |
Physical & Packaging(2) | ||
Dimensions | 6.9 x 10.6 x 0.39 | 7.0 x 5.0 x 10.0 |
Package Quantity | 1 | 6 |
Filtration Performance(6) | ||
Filtration Standard | True HEPA | HEPA |
Coverage Area (sq_ft) | 465 sq_ft | Large-room sq_ft |
Filter Stages | 2 | 1 |
Activated Carbon Filter | true | false |
Target Contaminants | Dust, smoke, pollen, pet dander, dust mite debris, mold spores | Particles, dust, allergens |
Pre-Filter Type | Odor-reducing | None |

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

Professional reviewers from HouseFresh highlight the HPA300's unique three-filter design that allows partial replacements and its effective performance in clearing thick smoke at turbo speed.

No professional reviews, editorials, or expert analyses of the Funmit HPA300 appear in available sources. Information is limited to retailer listings confirming compatibility with Honeywell models.



Users of similar third-party filters note that using pre-filters extends HEPA life and provides effective odor reduction.