The medical protective mask is applicable to the protection of medical personnel and relevant staff from airborne respiratory infectious diseases. It is a kind of dense self-priming filtering medical protective articles with high protection grade. It is especially suitable for patients with respiratory infectious diseases transmitted through air or close droplets. It can filter particles in the air and block droplets, blood, body fluids, secretion droplets, etc. it is a disposable product. It is applicable to medical personnel who fight against the front line of the epidemic and have high (high) exposure risk.
Medical protective masks are generally not recommended to be worn continuously for more than 6 hours, up to 8 hours. If the medical protective mask is contaminated, deformed, damaged or has difficulty breathing during use, it must be replaced immediately.
It refers to the medical protective mask that can prevent the transmission of infectious particles in the blood and respiratory secretions, and can prevent the transmission of infectious particles in the respiratory tract.
Composition and function of medical protective mask: medical protective mask is composed of mask surface and tensioning belt. The mask surface is divided into three layers: inner layer, middle layer and outer layer. The inner layer is ordinary sanitary gauze or non-woven fabric, and the middle layer is single-layer or multi-layer. A layer of ultra-fine polypropylene melt blown material layer, and the outer layer is non-woven fabric or ultra-thin polypropylene melt blown material layer. The high-efficiency medical protective mask has strong hydrophobicity and air permeability, and has a significant filtering effect on small virus aerosol or harmful dust. The overall filtering effect is good.
The medical protective mask has a good fit to the wearer's face. It can filter particles in the air and block pollutants such as droplets, blood, body fluids and secretions. The filtration efficiency of non oily particles can reach more than 95%. Commonly used personal protective equipment for the transmission of diseases.
Medical protective masks are made of one or more fabrics with isolation function, such as virus aerosol and virus containing liquid. It has low air flow resistance, synthetic blood barrier, specific strength, filtration efficiency, surface moisture resistance and flame retardancy.
Scope of application of medical protective mask: This product is a good protective article. It is recommended to wear it in case of serious environmental pollution or sudden medical infectious diseases (such as respiratory infectious diseases) to prevent patients or environmental viruses from infecting users.
Correct use of medical masks:
1. Wash hands with soap and water or alcoholic hand sanitizer before and after wearing masks.
2. The colored surface faces outward and the metal sheet faces upward.
3. Fasten the mask belt, press the nose clip with two fingertips, and move along the bridge of the nose to both sides to make it close to the face.
4. The mask should completely cover the mouth, nose and chin.
5. The disposable mask worn for a long time shall be replaced every 4 hours.
6. Patients with heart and respiratory diseases should not wear masks for a long time.
7. Put the discarded mask into a plastic bag or paper bag, and then throw it into a covered dustbin.
Classification of medical masks:
Medical masks are classified by belt type: usually including belt type, head wearing type, ear hanging type, etc. Belt type. Headwear is suitable for medical staff who wear it for a long time. It is troublesome to wear, but it has no burden on the ears; Ear wearing: easy to wear, suitable for frequent wearing and falling off.
Medical masks are divided into plane type, folding type, duckbill type, fish type and arch type. The plane mask is easy to carry, but the sealing performance is poor; Foldable duckbill shape. The fish shaped mask is easy to carry; Arched breathing space is large, with good sealing, but it is inconvenient to carry.
According to the executive standard, medical masks are generally divided into disposable medical masks, medical surgical masks and medical protective masks.
According to the microbial status of the product, medical masks can be divided into non sterile masks and sterile masks. The non sterile mask shall meet the microbial control standard, that is, a certain number of microorganisms are allowed, but it must be within the controllable range and free of relevant pathogens. The sterile mask is sterilized accordingly and is in a sterile state within the period of validity.
In our daily life, what are the tips for purchasing medical masks?
1. Dust suppression.
The dust suppression performance of
Medical Mask depends on its ability to block fine dust, especially respiratory dust below 2.5 microns. Because the size of dust particles can directly enter the alveoli, it has a greater impact on human health. This product is composed of filter material, activated carbon fiber felt or non-woven fabric. Dust below 2.5 microns can be transported to the filter material through the filter material.
2. Sealing performance.
The solution to prevent facial side leakage is to prevent unfiltered air from inhaling the medical mask from the gap between the mask and the face. Air, like water, has less resistance and flows first. If the shape of the mask is not close to the face, harmful substances in the air will leak into the human respiratory tract from nearby. Well, even if you choose a better mask with filter material. Your health. According to many foreign laws and regulations, workers should regularly conduct mask sealing tests. The purpose is to ensure that workers choose the correct mask and wear it according to the correct procedures.
May 23, 2022
