
Levoit Core 300-P
Score: 88/100
Blueair Blue Pure AllergenBlock Replacement Filter
Score: 88/100Rankings

The Levoit Core 300 Replacement Filter (Pet Allergy version) is a genuine 3-stage filtration replacement designed for Levoit Core 300 series air purifiers. It features an upgraded activated carbon filter enhanced with ARC formula to neutralize pet odors and VOCs, alongside a HEPA-grade main filter. It is best suited for pet owners in small to medium rooms seeking relief from shedding pets and allergy sufferers.

The Blueair Blue Pure AllergenBlock Filter is a specialized replacement filter designed exclusively for the Blue Pure 211i Max air purifier. It features an AllergenBlock Defense Coating that neutralizes over 90% of allergen properties and captures 99.97% of particles down to 0.1 microns. Best suited for allergy and asthma sufferers or pet owners in homes up to 674 sq ft needing allergen neutralization beyond basic capture.
| Attribute | ![]() | ![]() |
|---|---|---|
6 months | 7.5 monthsbest | |
219 sq_ft | 674 sq_ftbest | |
145 cfm | 410 cfmbest | |
99.97 percentbest | 99.97 percentbest | |
| ↓ lower better | 0.3 microns | 0.1 micronsbest |
3 | 4best | |
| ↓ lower better | 1.17 lbsbest | 2.15 lbs |
1best | 1best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Compatibility & Fit(1) | ||
Compatible Models | Levoit Core 300 Series | Blue Pure 211i Max |
Maintenance & Lifespan(1) | ||
Replacement Interval (months) | 6 months | 7.5 months |
Physical & Packaging(2) | ||
Weight (lbs) | 1.17 lbs | 2.15 lbs |
Dimensions | 7.48 x 6.3 x 7.48 inches | 10.0 x 4.7 x 20.7 |
Filtration Performance(7) | ||
Filtration Standard | HEPA-grade | HEPASilent |
Coverage Area (sq_ft) | 219 sq_ft | 674 sq_ft |
Clean Air Delivery Rate (cfm) | 145 cfm | 410 cfm |
Minimum Particle Size Captured (microns) | 0.3 microns | 0.1 microns |
Filter Stages | 3 | 4 |
Air Changes Per Hour (ach) | 5 ach | 4.8 ach |
Pre-Filter Type | Non-woven fabric | |

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

Professional reviewers praise the lab-tested performance of the Levoit Core 300 Pet Allergy filter, highlighting its strong CADR scores across smoke, dust, and pollen categories. Experts note that the upgraded activated carbon content beyond the standard 50 grams excels at capturing allergens and neutralizing odors effectively without requiring separate replacement units.
Everyday consumers rate the product highly for its easy assembly and effective pet deodorizing capabilities. Recurring themes in user feedback include strong odor control and significant allergen reduction, though some users express frustration with the frequent replacement schedule and occasional stock availability issues.




Professional reviewers and editors highlight the AllergenBlock filter as a specialized solution for allergy sufferers, emphasizing its ability to neutralize rather than just trap allergens like pollen and pet dander. Editors note that it outperforms original filters in allergen protection while maintaining effective odor control through HEPASilent technology.
Everyday users describe the filter as a game-changer for easy replacement on the 211 series, praising its ability to keep air pure effortlessly. Common themes include reliable longevity and recyclability, though users emphasize the critical need to match the exact purifier model to maintain performance.