
Honeywell HRFSS1
Score: 85/100
Honeywell HRFSP1
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 Honeywell HRFSP1 is an enhanced S-series air purifier filter designed to target pet odors using activated carbon and zeolite. It reduces pet odors up to 3.5x faster than standard filters when used with a pre-filter and HEPA filter in compatible Honeywell units. Ideal for multi-pet households needing faster odor control alongside HEPA filtration.
| Attribute | ![]() | ![]() |
|---|---|---|
3 monthsbest | 3 monthsbest | |
465 sq_ftbest | — | |
99.97 percentbest | — | |
| ↓ lower better | 0.3 micronsbest | — |
2best | — | |
| ↓ lower better | — | 0.53 lbsbest |
1best | 1best |
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 | HPA3100, HPA3200, HPA3300, HPA5100, HPA5150, HPA5200, HPA5220, HPA5250, HPA5300, HPA5350 |
Physical & Packaging(1) | ||
Dimensions | 6.9 x 10.6 x 0.39 | 0.39 x 10.6 x 6.9 |
Filtration Performance(2) | ||
Filtration Standard | True HEPA | S-series Enhanced |
Target Contaminants | Dust, smoke, pollen, pet dander, dust mite debris, mold spores | pet odors |


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.

Manufacturer claims emphasize a 3.5x faster pet odor reduction rate via activated carbon and zeolite, positioning the filter as a customizable enhancement for InSight and PowerPlus series purifiers.
Everyday users commonly praise the filter for making all the difference in managing cat odors when used with HEPA filters.
“These pet odor filters make all the difference... keeping our cat odors manageable”


