Hunan Kanglilai N95 medical surgical mask (sterile type) is suitable for the basic protection of medical staff or related personnel, as well as the protection of body fluid diffusion and splash during invasive operation. Recognize the expiration date of the product when using it, and it is forbidden to use it after expiration; The single package is damaged and has foreign objects, so it is prohibited to use it; Once the single package is opened, use it immediately; This product is for one-time use only and will be destroyed after use.