Which mask can protect against PM2.5

Masks can block external pollution and infectious agents such as saliva, but not all masks can protect against PM2.5. Masks that can protect against PM2.5 are specially manufactured and have better filtering properties. Wearing a PM2.5 protective mask in foggy weather can prevent PM2.5 particles from being inhaled into the body. Next, let’s take a look at masks that can protect against PM2.5!

The mask matches the face shape to prevent dust

Since the SARS epidemic, citizens have become more familiar with N95 masks. This type of mask, which can filter out at least 95% of suspended particles and saliva but is not oil-resistant, has become a hot item for many consumers during smog weather.

Health damage

Meteorological and medical experts believe that haze weather caused by fine particulate matter is even more harmful to human health than sandstorms. Particles larger than 10 microns will be blocked outside the human nose; particles between 2.5 and 10 microns can enter the upper respiratory tract, but some can be excreted from the body through sputum, etc., and will also be blocked by the villi inside the nasal cavity, so the harm to human health is relatively small; fine particles below 2.5 microns have a diameter equivalent to 1/10 of the size of human hair and are not easily blocked. After being inhaled into the human body, it will directly enter the bronchi, interfere with gas exchange in the lungs, and cause diseases including asthma, bronchitis and cardiovascular disease.

On average, each person inhales about 10,000 liters of air every day. The dust that enters the alveoli can be quickly absorbed and directly enters the blood circulation and is distributed throughout the body without being detoxified by the liver. Secondly, it will damage the ability of hemoglobin to transport oxygen and cause blood loss. For patients with anemia and circulatory disorders, serious consequences may occur.

Through the above knowledge, we know that long-term inhalation of PM2.5 into the body can cause cardiovascular diseases, any of which is relatively fatal. In areas with severe haze, it is very necessary to buy PM2.5 protective masks. After all, PM2.5 cannot be prevented by ordinary disposable masks or cotton masks. Only special protective masks can provide protection.