Air respirators, also known as gas storage gas masks, are sometimes referred to as fire masks. It uses compressed gas cylinders as its gas source, but the gas contained in the cylinders is compressed air. It is widely used in fire fighting, chemical industry, shipping, petroleum, smelting, warehouse, laboratory, mine and other departments for firefighters or rescue workers to safely and effectively extinguish fires, rescue and rescue work in various environments such as thick smoke, toxic gas, steam or oxygen deficiency.
How to clean an air respirator?
The outer layer of an air purifying respirator often accumulates a lot of dust, bacteria, and other pollutants in the outside air, while the inner layer blocks exhaled bacteria and saliva. Therefore, the two sides cannot be used alternately, otherwise the pollutants contaminated by the outer layer will be inhaled into the human body when directly attached to the face, becoming a source of infection. When not wearing a mask, it should be folded and placed in a clean envelope, and the side close to the mouth and nose should be folded inward. Do not casually put it in your pocket or hang it around your neck.
If the air purifying respirator is wetted by exhaled heat or saliva, its ability to block bacteria will be greatly reduced. So, it is recommended to keep a few masks on hand for replacement and washing once a day. When washing, it should be boiled in hot water for 5 minutes first.
Air purifying respirators should be cleaned and disinfected daily, whether it is gauze masks or air filtration masks, they can be disinfected by heating. The specific method is:
1. Cleaning. First, gently rub the gauze mask with warm water and soap. The bowl shaped mask can be wiped clean with a soft brush dipped in detergent, and then washed clean with water. Please note that do not rub vigorously, as if the warp and weft gaps of the gauze are too large, it will lose its ability to prevent droplets.
2. Disinfection. Soak the cleaned mask in a 2% peracetic acid solution for 30 minutes, boil it in boiling water for 20 minutes, or steam it in a steamer for 15 minutes, then air dry and set aside for later use. This method is suitable for gauze masks and bowl shaped masks.
3. Check. Before reuse, it is necessary to carefully check whether the mask and face shield are still intact. For gauze masks and face shields, a light transmission inspection method can be used, that is, taking care of them in front of a lamp to see if there are obvious light spots and whether the light transmission rate of the middle and edge parts is consistent. If there are any doubts, they should be replaced with new ones. Anyway, masks and face shields usually need to be updated after 3 to 7 washes, and high-quality masks can be washed up to 10 times. Activated carbon adsorption masks should pay attention to regularly replacing the activated carbon interlayer. If the activated carbon interlayer is non replaceable and needs to be replaced after 7 to 14 days of use, this type of mask cannot be cleaned and reused.