The main purpose
This instrument is used to detect the dead space of protective masks, that is, the volume fraction of CO2 in the inhaled gas.
Technical index
1. Breathing simulator simulates breathing frequency modulation: 10-40 times/min
2. Adjusting range of simulated tidal volume: 0.5～3.0L/min
3. The volume fraction of carbon dioxide source is 5.0±0.1%
4. Carbon dioxide flow meter range: not less than 40L/min
5. Carbon dioxide analyzer range: no less than 12%, accuracy no less than 0.1%
6. Electric fan: wind speed 0.5m/s
7. Breathing rate: 20 times/min
8. Respiratory tidal volume: 1.5L
9. Power supply: AC220V 50Hz
10. Real-time automatic calculation and display of the volume fraction of CO2 in the inhaled gas
11. Dimensions: 980mm*820mm*1400mm
Applicable standards
GB 2626-2019 Respiratory protection-Non-powered air-purifying particle respirator
GB 2890-2022 Respiratory protection-Non-powered air-purifying gas mask
GB 21976.7-2012 Building fire escape and refuge equipment Part 7: Filter type fire self-rescue breathing apparatus

GB 19803-2023 Protective face mask for medical use