Fresh 25+ Gas Mask Boxes
Fresh 25+ Gas Mask Boxes. The gas masks were bulky and citizens created gas mask boxes they could carry like back packs to. 1,384 gas mask protection box products are offered for sale by suppliers on alibaba.com. The gas mask is a device used in situations where airborne pollutants and toxic gases are suspended in free air. The gas mask's purpose is to prevent the user from inhaling said pollutants.