Description
| Certification/Class(Standard) | FFP2 (EN149-2001) |
| Filter
performance – (must be ≥ X% efficient) |
≥ 94% |
| Test agent | NaCl and
paraffin oil |
| Flow rate | 95 L/min |
| Total inward
leakage (TIL)* – tested on human subjects each performing exercises |
≤ 8% leakage
(arithmetic mean) |
| Inhalation
resistance – max pressure drop |
≤ 70 Pa (at 30
L/min) ≤ 240 Pa (at 95 L/min) ≤ 500 Pa (clogging) |
| Flow rate | Varied – see
above |
| Exhalation
resistance – max pressure drop |
≤ 300 Pa |
| Flow rate | 160 L/min |
| CO2 clearance
requirement |
≤ 1% |
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