Medical face masks are considered as medical devices and regulated by national medical device regulations. Regulations will define the legal obligations, to ensure that medical face masks provide the minimum level of protection against intended risks. Specific requirements by classification are cited in the referenced performance standards.
In chemical experiments, it is necessary to take various effective safety precautions.The proper selection and use of personal protective equipment such as gloves and face masks is essential to protect us from injuries.
Melt-blown fabric is the core material of face masks, made of polypropylene, and its fiber diameter can reach 1-5 microns. Its unique wick structure of the ultra-fine fibers can increase the number and surface areas of fiber per unit, which enables the fabrics possess the properties of superb filtering, shielding, thermal-insulating and oil-absorbing.