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Comparison of filter classes according EN 779, EN 1822 and ...

F7, MERV 13-14 ... E11, MERV 16. Overall Value ≥ 99.5% E12. Overall Value ≥ 99.95% H13 ... H13, ISO 35 H, ≥ 99.95%, ≤ 0.05%, ≥ 99.75%, ≤ 0.25%.

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