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AMZYXUAN Gas Masks Survival Nuclear and Chemical Gas Mask with 40mm Activated Carbon Filter Tactical Full Face Respirator Mask for Chemicals Gases Paint Vapors Welding Black

This machine is driven by imported electromagnetic valve, which can resist the high pressure and ultra-low temperature of CO2. The gas cylinder and the machine are connected separately. The strong range makes it unique in various large-scale concerts, bars, and outdoor performances! It should be used with a carbon dioxide tank with a joint size of American thread 19mm.