PreMax Pre-Filter replacement 3-pack for IQAir HealthPro Series air purifiers filters of coarse and fine particulate matter and provided prefiltration for subsequent filters. Media consists of non-woven glass microfiber, mini-pleated for high-capacity, non-off gassing separators. Efficiency rating is ≥ 55% at ≥ 0.003 microns (EN 779 class F8). The surface area covered is 30 sq.ft. (2.8 m²). The average filter life for each filter: 18 months (based on average daily usage of 10h on speed 3).
