Class K2
CLASS K2 Ammonia filter
The K2 Filter combined with appropriate face piece provided with a threaded DIN Rd 40x 1/7" connector, is used for protection against ammonia and its derivatives when the voulmetric concentration in the air does not exceed 0.5%.
Protective and utility feature
| FEATURE | Value permissible to EN-141 Std. | Test value obtained |
| Mass of filter / absorber (grams) | < 300 | 250 |
| Flow resistance (Pa): - continuous flow 30 dm³/min - continuous flow 95 dm³/min | < 140 < 560 | 93 350 |
| Minimal repture time (minutes) with concentration of 0.5% vol: - ammonia | 40 | 60 |