
Appliancemates HPA300 Replacement Filter
Score: 82/100
Improvedhand Core 300 Filter
Score: 75/100Rankings

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 Improvedhand Core 300 Replacement Filter is a third-party H13 True HEPA replacement filter designed specifically for Levoit Core 300 and Core 300S air purifiers. It utilizes a 3-stage filtration system that captures 99.97% of airborne particles as small as 0.01 microns. While it offers a 2-pack value, it lacks the extensive testing and user feedback associated with OEM or more established third-party brands.
| Attribute | ![]() | ![]() |
|---|---|---|
12 monthsbest | 5.5 months | |
99.97 percentbest | 99.97 percentbest | |
| ↓ lower better | 0.3 microns | 0.01 micronsbest |
— | 3best | |
9best | 2 |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Compatibility & Fit(1) | ||
Compatible Models | Honeywell HPA300 Series | Levoit Core 300, Core 300s |
Maintenance & Lifespan(1) | ||
Replacement Interval (months) | 12 months | 3-8 months |
Physical & Packaging(2) | ||
Dimensions | 6.5 x 1.6 x 10.2 | 7.5 x 5.7 x 7.5 inches |
Package Quantity | 9 | 2 |
Filtration Performance(2) | ||
Filtration Standard | HEPA 13 / MERV 17 | H13 True HEPA |
Minimum Particle Size Captured (microns) | 0.3 microns | 0.01 microns |

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

