Can disposable masks continue to be used after their expiration date?

There are so many places has fog haze, plus the latest outbreak, a lot of people at home have a disposable respirator, it is used to protect the smoke, but some people didn't use it, after buy or not buy independent packing, after apart without a finished, wait to want to use again, has expired, the disposable masks expired monkey can also be used? What are the dangers of expiration of disposable masks? How soon should disposable masks be used up? 

They are usually disposable medical masks, but they usually don't have the opportunity to use them. Now, the current epidemic is seeing an extension. It's out of date. It's very tangled. Do not continue to use. According to the timer, the protection effect of expired mask will be greatly reduced, but should be special in the special period, as long as it is a common manufacturer, the outer packaging has not been broken, it is not contaminated, but it can be used for protection, but in medical clinical can not be in use.What are the dangers of using an open, expired mask?

 When opened, some masks are useless, so it will become contaminated and it is best not to use them again. Due to this expired mask, its protective effect is not guaranteed, it may have mold, but has the potential to cause respiratory diseases, now try not to go to the crowd, and pay attention to personal hygiene and efforts.

 Storage life of disposable masks. In a dry environment, the group is more than half a month, so it should be used as soon as possible after opening. Disposable masks usually last 6-8 hours. After that, you need to replace it. Here it is reminded that the two sides of the mask cannot be used interchangeably.

 This is because the outer layer of the mask has accumulated a large amount of dust, such as bacteria in the external air and other bacteria, blocking the user's breathing, if it is a substitute, then there is a respiratory tract between the external container in the body, so affecting the health of the human body.