What kind of mask should be worn in hazy weather?

In haze weather, masks of KN95, N95, FFP2 and above standards should be worn.

The ordinary masks and disposable non-woven masks currently sold on the market are not enough to protect against fine particles such as PM2.5. General medical masks are also less effective in protecting against PM2.5. It is recommended to choose masks marked with KN95/N95, FFP2 and above standards.

In addition to considering the protective effect, factors such as the user's face shape and comfort should also be considered. Secondly, you should wear the mask according to the method recommended in the product instructions and confirm the air tightness. However, not all people are suitable for wearing anti-haze masks.

When the mask is used for a period of time, its filtering effect will be reduced or even stained. 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. Masks need to be replaced in a timely manner according to the respiratory resistance and hygienic conditions of the mask. If you have been exposed to an infectious environment, or if the mask is found to be damaged or deformed, you should replace it immediately.

Precautions when purchasing masks

1. Comply with standards and certification: When choosing a mask, you should ensure that the mask meets relevant standards and certification requirements. For example, in China, you can choose masks that meet national standards GB2626 or YY0469; in other regions, you can choose masks that meet the corresponding standards. Check the logo on the mask packaging to confirm that the mask has passed relevant certifications.

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

3. Good sealing performance: The mask must be able to effectively seal the mouth and nose to prevent air from leaking in from the edges. When purchasing a mask, you should pay attention to choosing a mask that fits the contours of your face well and has no obvious gaps to ensure good sealing performance.

4. Comfort and breathability: When wearing a mask for a long time, comfort and breathability are also factors that need to be considered. Choosing a mask with good breathability and comfortable wearing can reduce discomfort and improve the convenience of wearing the mask.

5. Purchase through formal channels: In order to ensure the quality and legality of masks, it is recommended to purchase masks through formal channels, such as pharmacies, supermarkets, and reliable online e-commerce platforms. At the same time, be on the lookout for unusually low-priced masks that may have quality issues.

Reference for the above content: Baidu Encyclopedia-Masks