
Isinlive HEPA Replacement Filter
Score: 82/100
Appliancemates HPA300 Replacement Filter
Score: 82/100Rankings

The Isinlive HPA300 is a True HEPA filter replacement designed for Honeywell air purifiers, featuring pre-cut activated carbon pre-filters and capturing 99.97% of particles down to 0.3 microns. It offers a budget-friendly multi-pack alternative to OEM filters with high CADR ratings. Best for budget-conscious owners of Honeywell HPA300-series purifiers needing frequent replacements in medium rooms.

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.
| Attribute | ![]() | ![]() |
|---|---|---|
9 months | 12 monthsbest | |
465 sq_ftbest | — | |
320 cfmbest | — | |
99.97 percentbest | 99.97 percentbest | |
| ↓ lower better | 0.3 micronsbest | 0.3 micronsbest |
2best | — | |
| ↓ lower better | 1.79 lbsbest | — |
3 | 9best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Compatibility & Fit(1) | ||
Compatible Models | Honeywell HPA300 Series (HPA100/200/300/5000) | Honeywell HPA300 Series |
Maintenance & Lifespan(1) | ||
Replacement Interval (months) | 9 months | 12 months |
Physical & Packaging(3) | ||
Weight (lbs) | 1.79 lbs | lbs |
Dimensions | 10.2 x 6.5 x 1.6 | 6.5 x 1.6 x 10.2 |
Package Quantity | 3 | 9 |
Filtration Performance(2) | ||
Filtration Standard | True HEPA | HEPA 13 / MERV 17 |
Target Contaminants | Dust, pollen, smoke, VOCs, pet odors | Dust, Pollen, Allergens |

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

Professional reviewers note that compatible HEPA filters like those for the Honeywell HPA300 effectively clear PM1 particles in 34-50 minutes at low speeds. They highlight the combined pre-filter and carbon layer's ability to handle larger particles and odors, while noting that three smaller HEPA filters allow for partial replacement.
Everyday users praise the easy installation, perfect fit, and effective odor control in homes with pets or smokers. Recurring positives include the value of multi-packs and the convenience of pre-cut filters without trimming needs.

