Class A2
CLASS A2 Organic gas and vapour filter
The A2 Filter combined with appropriate face piece provided with a threaded DIN Rd 40x 1/7" connector, is used for protection against organic compounds whose boiling temperature is higher then 65°C and voulmetric concentration in the air does not exceed 0.5%.
Protective and utility feature
| FEATURE | Value permissible to EN-141 Std. | Test value obtained |
| FEATURE | Value permissible to EN-141 Std. | Test value obtained |
| Mass of filter / absorber (grams) | < 300 | 200 |
| Flow resistance (Pa): - continuous flow 30 dm³/min - continuous flow 95 dm³/min | < 140 < 560 | 80 330 |
| Minimal repture time (minutes) with concentration of 0.5% vol: - carbon tetrachloride | 40 | 63 |