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JG057 type protective mask dead space tester:
              About our product：
              
			  This device is designed and manufactured in accordance with the standards GA124 and GB2890. It is used to test the dead space test of the positive pressure fire air respirator. The test principle is determined by measuring the CO2 content in the inhaled gas.
              
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Product details
【product description】This device is designed and manufactured in accordance with the standards GA124 and GB2890. It is used to test the dead space test of the positive pressure fire air respirator. The test principle is determined by measuring the CO2 content in the inhaled gas.
【Standards compliant】Article 6.9 "Dead Space" of GB2626-2019 "Respiratory Protection Self-priming Filtering Anti-Particulate Respirator"

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JG057 type protective mask dead space tester:

About our product：

This device is designed and manufactured in accordance with the standards GA124 and GB2890. It is used to test the dead space test of the positive pressure fire air respirator. The test principle is determined by measuring the CO2 content in the inhaled gas.