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Face mask dead cavity tester

Author: Released in:2024-05-06 Click:18

Face mask dead cavity tester

Face mask dead cavity tester

The mask dead space detection device is used to detect the dead space of protective masks, which is the volume fraction of CO2 in the inhaled gas. The testing standards should comply with the dead space detection items in the standard GB2626-2019 "Respiratory Protective Equipment - Self suction Filtered Anti Particle Respirators", TAJ1001-2015 "PM2.5 Protective Masks", and the mask type dead space detection items such as carbon dioxide content in the inhaled gas of the mask in GB/T16556-2007 "Self supply Open Circuit Compressed Air Respirators";

Equipment usage:

The dead chamber tester for protective masks is used to detect the volume fraction of CO2 in the inhaled gas.

Applicable standards:

GB 2626-2006 Respiratory protective equipment - Self suction filtering particulate respirators

GB 2890-2009 Respiratory Protection Self suction Filter Gas Mask

GB 21976.7-2012 Building Fire Escape and Refuge Equipment Part 7: Filtered Fire Self rescue Respirators

Equipment principle:

Subtract the CO2 concentration in the environment from the CO2 concentration in the inhaled gas, and take the average of three consecutive tests, which should not exceed 1%. So as to determine the performance of the face mask dead cavity testing device.

Product features:

The testing process of the protective mask dead cavity tester is completely controlled by computer programs, achieving automatic detection, simple operation, and convenient use;

During testing, there is no need to adjust the respiratory rate and volume. Simply perform simple parameter settings on the computer to change the respiratory rate and volume, making the adjustment very convenient and accurate.

Features: The box is treated with spray paint, which is aesthetically pleasing and elegant;

All fixtures are made of stainless steel, which is beautiful and corrosion-resistant;

Metal head molds are used to fix face masks, durable, corrosion-resistant, and easy to seal.

The metal head mold is equipped with inlet and outlet air pipes, which facilitate ventilation with the face mask cavity;

The total dead volume of the testing device shall not exceed 2000mL, with an accuracy of level 2;

Imported flow meters from Japan; Flow range of 100L/min;

Imported brand pressure gauge. Range 0~1Mpa;

Respirator route adjustment (10~40) times/min; Simulated respiratory volume regulation range of 0.5~3 L/min;

The respiratory system includes: respirator, auxiliary pump, one-way valve, flow meter, compensation bag, carbon dioxide analyzer, solenoid valve, testing head mold, gas sampling tube, carbon dioxide collector, etc.

Technical indicators:

1. Respiratory simulator simulates respiratory frequency modulation: 10-40 times/min

2. Simulated tidal volume adjustment range: 0.5~3.0L/min

3. The volume fraction of carbon dioxide gas source is 5.0 ± 0.1%

4. Carbon dioxide flow meter range: not less than 40L/min

5. Carbon dioxide analyzer range: not less than 12%, accuracy not less than 0.1%

6. Electric fan: wind speed of 0.5m/s

7. Respiratory rate: 20 times/min

8. Breathing 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. External dimensions: 980mm * 820mm * 1400mm


Size: 1500 (W) x 700 (D) x 1500 (H) mm

Power supply: AC 220V, 50/60Hz, 3A

Weight: 150kg