Usually need to replace the anti-PM2.5 mask within 2 days. Professional PM2.5 protective masks, such as N99 masks, N95 masks, etc., will be replaced after two days of use, otherwise they will not have a good protective effect.
In addition, such masks are not suitable for long-term wear, because they have good air-tightness, which can easily cause people to breathe poorly and mask hypoxia. You can choose whether to wear a professional PM2.5 mask according to your daily air quality. If the air quality is good, you can choose a normal dust mask.
Mask with PM2.5 filter
Masks that can replace PM2.5 filters are usually replaced every 8-10 days, and it is recommended to clean the mask body every 2-3 days. This type of mask is a filter that has the function of preventing the PM2.5 mask from being antibacterial in the dust mask inside the public mask. The filter is usually disposable, usually 8 to 10 days (8 hours per day). If stains appear on the filter, replace it immediately.
