What is a PM2.5 mask?

When it comes to PM2.5 masks, then you have to say first what is PM2.5?

PM2.5: Particles with an aerodynamic equivalent diameter less than or equal to 2.5 μm in the ambient air, also known as fine particles. The higher the value, the more serious the air pollution is. Respirable particulate matter, also known as PM10, refers to particles with aerodynamic equivalent diameters below 10 microns. Although fine particulate matter is only a component of the Earth's atmospheric composition, it has an important effect on air quality and visibility. Fine particles have a small particle size, contain a large amount of toxic and harmful substances, have a long residence time in the atmosphere, and have a long transportation distance. Therefore, they have a greater impact on human health and atmospheric environmental quality. Meteorologists and medical experts believe that the haze weather caused by fine particles is even more harmful to human health than sandstorms. Particles with a diameter of more than 10 microns will be kept out of the human nose; particles with a particle size of between 2.5 microns and 10 microns can enter the upper respiratory tract, but some can be excreted through sputum, etc. The internal fuzz blocker is relatively less harmful to human health, while the fine particles with a particle size below 2.5 microns have a diameter equivalent to 1/10 of human hair and are not easily blocked. After being inhaled into the human body, it directly enters the bronchus, interferes with the gas exchange in the lungs, and causes diseases including asthma, bronchitis, and cardiovascular diseases.

In the past, when people chose to go for a mask, they did not seem to deliberately focus on the “PM2.5” label. However, the hazy weather in Beijing that began at the beginning of this year helped the public understand more about environmental pollution and began to know this. Word - PM2.5. The PM2.5 mask refers to a mask that can effectively insulate PM2.5, but the tightness of the mask determines that 100% of the suspended particles cannot be blocked. Even so, PM2.5 masks are a good choice for us to wear masks.

So what should you watch out for when wearing and choosing PM2.5 masks?

1. Pm2.5 mask with three-dimensional cutting, to maintain the ventilation space; and the use of adjustable nose beam to obtain the best degree of adhesion with the face;

2. The same type of masks for men and women, XS code for children aged 3-6; S code for 7-12 years old (see the detailed product description for the specific size);

3. After using the mask, please store it in a clean and dry place as much as possible, avoid folding, so as to avoid damage to the nose beam;

4. Recommended cleaning methods: Remove the PM2.5 filter before washing, dilute it with a neutral detergent and add water, place the mask, gently scrub it with hands, and dry it in a cool place. Do not wash in the washing machine with other clothing. It is generally recommended that it be cleaned once in 1~2 weeks, and the filter should be replaced when it is cleaned;

5. PM2.5 microfiltration TM technology filter is an important part of this product, a standard, with the box comes 3 pieces. Do not use filters from other sources that have not been approved by the manufacturer. Therefore, the green shield will not be responsible for adverse reactions.

Children under 6.3 years old have low lung capacity and are not recommended for use; they are not recommended for use in air-dead areas or indoors.