HEPA
Inferior to ULPA but superior to EPA.
H13
- EN 1822:H13 and ISO 29463 ISO 35H, Retention: ≥ 99.95%
- EN 1822:H13 and ISO 29463 ISO 40H, Retention: ≥ 99.99%
H14
- EN 1822:H14 and ISO 29463 ISO 45H, Retention: ≥ 99.995%
- EN 1822:H14 and ISO 29463 ISO 50H, Retention: ≥ 99.999%