Purchase and use of activated carbon masks
Simple activated carbon gas masks are mainly used in chemical operations. The air in the workplace has a chemical gas content that meets the national standard and is well ventilated. (After environmental protection disposal, use a filter box gas mask in places that exceed the standard). It has four layers, divided into spunbond cloth, activated carbon cloth (which can filter and purify odors), high efficiency filter cloth (this is an electrostatically treated filter layer, which can effectively prevent the intrusion of dust), and spunbond cloth. The main function of the activated carbon filter layer is to absorb organic gases, malodors, and toxic dust. It is not used to filter dust. It is suitable for work types with volatile chemicals such as oil spraying and silk screen printing.
The correct use of activated carbon masks: 1. Pull the mask up and down to unfold the folds; 2. The slightly black side is facing out, and the light white (rubber webbing) side is facing inward; 3. There is a nose clip (metal strip nose bridge) The side of the clip) is facing up; 4. Use the elastic webbing on both sides to fit the mask to the face; 5. Gently press the metal strips on both sides of the nose with two fingers; 6. Pull the lower end of the mask to the chin and adjust it to It is better to have no gaps between the faces. ★This product is a disposable product. Special attention should be paid to this type of mask not directly in contact with chemicals. After use, the mask should be packed in the original packaging bag and stored in a dry and ventilated place.
How to distinguish between true and false activated carbon? Most of the activated carbon layers used in mask factories use impregnation processing methods to mix resin and activated carbon to fix them on non-woven fabrics. There are many fake activated carbon masks on the market, although they look like dark black "activated carbon". "The cloth, in fact, is only dyed and cannot absorb odors or organic gases at all. The real activated carbon is activated carbon particles or activated carbon fibers that have undergone high-temperature carbonization and activation, and will not easily melt and disappear even if they encounter high temperatures. Give it a try, cut open the activated carbon mask you have used, take out the black activated carbon layer, rub it with your hands, and see if any black granular objects have fallen off, burn it with a lighter, if there is no remaining activated carbon particles or activity Carbon fiber means that what you bought before was a counterfeit product with no adsorption effect.