How to use 3m mask

As environmental pollution becomes increasingly serious, smog has also come along. Many cities have experienced dense smog weather. Haze is very harmful to the human body, especially it has a great impact on people's respiratory tract. In order to reduce the impact of haze, many people wear 3m masks when going out. But is the wearing method of 3m mask really correct? Here's how to wear this mask correctly.

1. First loosen the headband every 2-4 cm (only for model 8210). Place the mask in your palm, with the metal nose strip toward your fingertips, and let the headband hang naturally.

2. Put on the mask with the metal strip on the nose facing upwards and close to the face.

3. Place the upper headband of the mask behind your head, then pull the lower headband over your head, place it behind your neck, and adjust it to a comfortable position. Place your fingertips along the metal strip of your nose bridge, from the middle to both sides, and slowly press inward until it fits snugly against the bridge of your nose. .

4. Cover the mask with both hands as much as possible and perform positive and negative pressure tests. Positive pressure test: Cover the mask with both hands and exhale vigorously. If air overflows from the edge of the mask, it means that it is not worn properly and the headband and nose metal strip must be adjusted again; Negative pressure test: Cover the mask with both hands,

Exhale vigorously.

5. The center of the mask will sink. If air enters from the edge of the mask, it means that it is not worn properly and the headband and nose metal strip must be adjusted again. Function of breathing valve: In hot and humid working environment, poor ventilation or heavy workload, using a mask with breathing valve can help you

It feels more comfortable when you exhale.

6. The working principle of the breathing valve is that the positive pressure of the exhaust gas during exhalation will blow the valve open to quickly expel the waste gas in the body and reduce the stuffiness when using the mask. The negative pressure during inhalation will automatically close the valve to avoid inhaling pollutants from the external environment.

7. 3M masks are widely used in life. Only by mastering the correct usage methods can 3M masks better play their protective effect.

The above is the correct way to wear a 3m mask. Friends who are used to wearing masks when going out can learn more about this. In order to make this mask play a greater role, it is very important to learn the correct way to wear it. So everyone can learn more about it to avoid wearing a mask without enjoying its effects.