With the outbreak of COVID-19 epidemic, masks have become an indispensable item in people's lives. As a well-known mask brand, 3M masks are favored by consumers. However, there are many models of 3M masks, and different models have different protective capabilities and applicable scenarios. This paper will introduce the model differences and classification of 3M masks to help you understand the protective ability and applicable scenarios of different models of masks.

Model classification of 3M masks

The types of 3M masks are mainly divided into the following categories:

1.n series masks

N series masks refer to particulate filter masks in 3M masks. N series masks are divided into three types: N95, N99 and N 100. Among them, N95 mask has the best filtering effect, which can filter more than 95% of the particles in the air. However, N99 mask and N 100 mask have better filtration effect, which can filter 99% and 100% of airborne particles. N series masks are suitable for filtering particles in the air, such as dust, smoke, bacteria and viruses.

2.r series masks

R series masks refer to the oily particle filter masks in 3M masks. R series masks are divided into three types: R95, R99 and R 100. Among them, the R95 mask has the best filtering effect, which can filter more than 95% of oily particles in the air. However, R99 mask and R 100 mask have better filtration effect, which can filter 99% and 100% of oily particles in the air. R series masks are suitable for filtering oily particles in the air, such as automobile exhaust, painting and chemical industry.

3.p series masks

P series masks refer to oily particulate matter and particulate matter filtering masks in 3M masks. P series masks are divided into three models: P95, P99 and P 100. Among them, P95 mask has the best filtering effect, which can filter more than 95% of oily particles and particulate matter in the air. P99 mask and P 100 mask have better filtering effect, which can filter 99% and 100% of oily particles and particulate matter in the air. P series masks are suitable for filtering oily particles and particulates in the air, such as chemicals, medicines and pesticides.

How to use the 3M mask?

No matter what type of 3M mask it is, it is very important to use it correctly. The following is how to use the 3M mask:

1. Wash your hands

Wash your hands before wearing a mask to prevent bacteria and viruses from infecting the mask.

2. Determine the front and back of the mask.

There are two kinds of faces: front and back. To wear a mask correctly, we must first determine the front and back. Generally speaking, the side with metal strips on the mask is the upper part of the mask and needs to fit the bridge of the nose; The side without metal strip is the lower part of the mask, which needs to fit the chin.

Adjusting mask

When wearing a mask, it is necessary to stick the metal strip of the mask on the bridge of the nose to ensure that there is no gap in the upper part of the mask. At the same time, it is necessary to stick the lower part of the mask on the chin to ensure that there is no gap in the lower part of the mask.

4. Check the tightness of the mask.

After wearing a mask, you need to check the tightness of the mask. You can check the tightness of the mask by breathing. If you feel that the mask leaks when breathing, you need to readjust the mask.

5. Wearing time should not be too long

Although the 3M mask can filter particulate matter and oily particulate matter in the air, it should not be worn for too long. Generally speaking, wear it for no more than 8 hours. If the mask gets wet or has difficulty breathing, it needs to be replaced in time.