What mask should I wear in foggy days?

Wear masks of KN95, N95, FFP2 and above in foggy days.

At present, ordinary masks and disposable non-woven mask sold in the market are not enough to protect fine particles such as PM2.5, and the protective effect of ordinary medical masks on PM2.5 is also poor. It is recommended to choose masks marked with KN95/N95, FFP2 and above standards.

In addition to considering the protective effect, we should also consider the user's face and comfort. Secondly, you should wear a mask according to the method recommended in the product manual to confirm the air tightness. However, not everyone is suitable for wearing a smog mask.

When the mask is used for a period of time, its filtering effect will be reduced, and even color spots will appear. The use time of the mask can be adjusted according to the degree of air pollution. If the air pollution is serious, the use time of the mask will be shortened accordingly. According to the respiratory resistance and sanitary condition of the mask, change the mask in time. If you have been exposed to an infectious environment, or if you find that the mask is damaged and deformed, you should also replace it immediately.

Matters needing attention in purchasing masks

1. Compliance with standards and certification: When choosing a mask, ensure that the mask meets relevant standards and certification requirements. For example, in China, you can choose masks that meet the national standard GB2626 or YY0469; Other areas can choose masks that meet the corresponding standards. Check the logo on the mask package to confirm that the mask has passed the relevant certification.

2. Effective filtration performance: The filtration performance of the mask is very important for blocking the particulate matter in air excavation. Generally speaking, masks with high filtration efficiency have better protection effect. Common types of masks are medical masks, N95, KN95, etc. Choosing the right mask type depends on your needs and environment.

3. Good sealing performance: the mask must be able to effectively seal the nose and mouth to prevent air from leaking from the edge. When choosing a mask, we should pay attention to choosing a mask that fits the facial contour and has no obvious gap to ensure good sealing performance.

4. Comfort and breathability: Comfort and breathability are also factors that need to be considered when wearing a mask for a long time. Choosing a mask that is breathable and comfortable to wear can reduce discomfort and improve the convenience of wearing a mask.

5. Regular channel purchase: In order to ensure the quality and legality of masks, it is recommended to purchase masks through regular channels, such as pharmacies, supermarkets and reliable online e-commerce platforms. At the same time, pay attention to masks with extremely low prices, which may have quality problems.

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