When is the use time of disposable masks

Disposable masks have many advantages. For example, they can filter common poison gases, feel good and soft to the touch. They will not hurt our skin and have very good elasticity. Even after stretching, they are easy to restore. Moreover, they are relatively cheap and are often used in some large factories and mines. However, please note that disposable masks cannot be used for a long time, let alone repeatedly.

Generally, disposable masks are effective for four hours. It is recommended to replace it in time after more than four hours, otherwise bacteria may grow. Disposable masks are used in a wide range of places and areas, such as schools, food processing, and electronic manufacturing companies. These are crowded places where the virus is easily transmitted. So when you wear a disposable mask, you are not only protecting yourself but also others, which greatly reduces the transmissibility of viruses and diseases. Especially in some manufacturing or processing factories, dust is most likely to appear. When these dusts enter the respiratory tract, they pose a hidden danger to everyone's safety and also have a great impact on the lungs. By using disposable masks, you can prevent these dusts from entering the respiratory tract and avoid the occurrence of various diseases.

Before wearing it, you must do the following: Wash your hands to prevent dirty hands from contaminating the inside of the mask. Then, place the mask horizontally on your face, mouth and nose, and use both ends of the rope to hang on your ears. Then use both hands to pull the wrinkles of the mask upward and downward at the same time, so that the mask can completely cover the mouth, nose and chin. Finally, use the index fingers of both hands to press the metal strips on both sides of the bridge of your nose so that the upper end of the mask can fit closely against the bridge of your nose.

Of course, disposable masks also have certain defects. For example, this type of mask cannot be washed, is easily torn, and has poor strength. In addition, disposable masks are not suitable for all occasions. For example, disposable masks cannot be used in environments with corrosive gases, nor in environments with high humidity.