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What mask has the best effect of preventing haze in winter? Selection skills of anti haze mask

every winter, the sky in the north is always covered by a layer of haze, so many people always like to wear masks when they go out. The market of anti haze masks is becoming more and more popular. People wear all kinds of anti haze masks when they travel. Wearing an anti haze mask in haze weather can effectively filter impurities and haze in the air, so do you know how to choose?

how to choose the winter haze mask?

Personal recommendation with a breathing valve mask, it can let you breathe a lot smoother. Because I only use 3M, let's just talk about it. I prefer the p95 grade 3m8577 model, which is very tight, and the breathing valve is very good.

If you don't care about the image at all, 3m6200 is also good, but the respirator valve of this mask is directly in front, so it is easy to accumulate dust when riding. In this case, 3m7502 is a good choice, because its exhalation port is downward, which effectively prevents dust from entering from the respirator valve.

Disposable medical masks are also not suitable to prevent PM2.5. Disposable medical masks are made of thin non-woven fabrics for health, mainly for daily health protection of medical staff. Generally there are three layers, the inner and outer two layers are filter paper, and the middle one is non-woven.

Absorbent gauze mask is not suitable to prevent PM2.5. It is made of degreased gauze. It is soft and breathable. It is used for general health protection. It has 12 layers, 16 layers, 18 layers, 24 layers and other specifications. This kind of mask is made by folding and sewing different layers of gauze. Through layers of gauze to block particles, but the blocking effect is very poor, if it is to keep warm, it can be used.

Protective PM2.5 professional N95 mask. N95 respirator is one of nine kinds of particle respirators certified by NIOSH (National Institute of occupational safety and health). 'n' means not suitable for oily particles; '95' means that the filtration efficiency reaches 95% under the detection conditions specified in NIOSH standard. The N95 mask is tested with 0.3 μ M sodium chloride particles, with a barrier rate of more than 95%. When the user's face density is tested, the air can enter and exit through the mask when it is close to the face edge. 'N95 mask' can block the flow of 0.3 micron particles, so it can also prevent 2.5 micron particles.

Choose from the shape, the better the mask fits the face, the better the protective effect, because the protective effect of the mask is closely related to the fit of the mask and the face when wearing. Good fit, the air outside the mask is not easy to enter from the edge of the mask into the mask, inhaled by the human body. Therefore, the fitting performance of disposable cup mask and disposable folding mask is far better than disposable flat mask and replaceable filter cloth mask.

Matters needing attention

Remind you that it's difficult to have both haze prevention and comfort. Some masks have high respiratory resistance and will feel suffocating if worn for a long time. Therefore, the respiratory resistance of respirator should be considered when choosing respirator for the elderly and the infirm. When selecting masks, first press the masks on the face with your hands, feel normal breathing, and select the masks that are comfortable and smooth to breathe.

What do you know about the manufacturing standard of haze mask?

Sports, cold proof, with activated carbon, disposable, Luo Chen, who studied in Beijing, bought a variety of haze masks. 'now masks are a necessity. It's better to wear them than not. 'there are not a few people who think like rochen.

In recent years, buying masks has become the consumption habit of some citizens. However, consumers have different opinions on the anti haze effect of PM2.5 respirators sold on the market. One of the reasons is that the production standard of PM2.5 respirator has not been approved by the market.