In the current situation in which the new coronary epidemic has not been effectively combated, the use of face masks remains very important. The process of using the face mask is briefly presented below.
How long can we use face mask?
From the point of view of the human physiological structure, the canals in the nasal cavity are very curved and the nasal hairs form a "barrier" for filtration, as the circulation of the nasal mucosa is very strong. When air is sucked into the nostrils, the air stream forms a vortex in the curved passage that warms the air sucked into the nostril. Some tests have shown that when cold air is inhaled with less than seven degrees of C it is heated by the nose into the lungs of the air stream on 28,8 degrees of C, which is very close to the temperature of the human body. If you wear a mask for a long time, the nasal mucosa becomes brittle and the original physiological function of the nasal cavity is lost, so that you cannot wear a mask for a long time. face masks may only be worn in special environments, for example in places with many people and poor ventilation. Of course you have to wear a mask when walking in the open to resist wind, sand and cold or in an environment with air pollution, but time should not be too long. In addition, you should wear a mouth guard during the flu season when visiting public places where a large number of pathogenic bacteria may be present. Wearing a face mask is just one of the ways to prevent respiratory infections. The most important thing is to maintain good habits.
What kinds of face masks are classified according to materials?
Sort by material
The face mask is based on different material components, which are:
Gauze face mask: Some workshops still use gauze masks, but the GB19084-2003 standard they follow is relatively low, does not meet the GB2626-2019 standard, and can only protect large particles of dust.
Non-woven face mask: Most of the disposable protective masks are non-woven masks, mainly based on physical filtration supplemented by electrostatic adsorption.
Cloth face mask: The cloth mask only has the effect of keeping warm and has no effect of filtering extremely small particles such as PM.
Other material face masks, such as new biological protection filtration materials, etc.
How to produce the face mask?
When the face mask is moved into the processing position, ultrasonic waves are automatically generated, which form a micro amplitude and a high-frequency oscillation on the ear arch, which is immediately converted into heat, the material to be processed melts, and finally, the earrings are permanently glued or embedded in the mask body, the last processing step in the manufacture of inner ear-band masks. Only one operator is required to place the face mask body piece by piece in the mask layer. The following actions are carried out automatically by the equipment until the finished product is finished.
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