Face Mask Dead Space Tester

A. Overview:

The tester is used to detect the dead space of the face mask, that is, the volume fraction of carbon dioxide in the inspired air. The tester should meet the standards of the following: GB 2626-2019 "respiratory protection—non-powered air-purifying particle respirator", TAJ1001-2015 "PM2.5 protective mask" dead space detection section, and GB/T16556-2007 "self-contained open-circuit compressed air breathing apparatus" dead space detection sections of carbon dioxide from inspired air.

B. Technical Parameters

1.    Respiratory Simulator Breathing Frequency: 10～40 times/min    

2.     Analog Tidal Volume Adjustment Range: 0.5～3.0L/min

3.      Carbon Dioxide Volume Fraction: 5.0±0.1%

4.      Carbon Dioxide Flowmeter Range: not less than 40±1L/min

5.     Carbon Dioxide Analyzer Range: not less than 12%, accuracy not less than 0.1％

6.      Ventilation Fan: wind speed 0.5m/s

7.      Breathing Frequency: 20 times/min

8.      Breathing Tidal Volume: 1.5L

9.      Power Supply: AC220V 50Hz

C. Applicable Standards:

GB 2626-2006: Respiratory protective equipment - non-powered air-purifying particle respirator