| ASHRAE | EN1822 | ISO29463 |
EFFICIENCY 450 Pa 0,3 - 10μm |
|---|---|---|---|
| MERV16 | H10 | - | ≥85% |
| MERV17 | H11 | ISO 15E | ≥95% |
| ISO 20E | ≥99% | ||
| MERV18 | H12 | ISO 25E | ≥99,5% |
| ISO 30E | ≥99,9% | ||
| MERV19 | H13 | ISO 35H | ≥99,95% |
| ISO 40H | ≥99,99% | ||
| MERV20 | H14 | ISO 45H | ≥99,995% |
| ISO 50U | ≥99,999% |
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