Medical masks are one of the important materials for the prevention and control of the novel coronavirus pneumonia epidemic, and an important line of defense for the prevention of respiratory infectious diseases, which can reduce the risk of novel coronavirus infection. Medical masks can not only prevent the patient from spraying droplets, reduce the amount and speed of droplets, but also block virus-containing droplets and prevent the wearer from inhaling.
Medical mask classification
Medical masks are classified according to the form of the mask: usually there are strap type, head wear type, ear hook type, etc. Strap type and head-mounted type are suitable for medical staff who wear it for a long time. It is troublesome to wear, but it does not burden the ears. Ear-wearing type: easy to wear, suitable for frequent wearing and taking off.
Medical masks are classified according to the shape of the mask: flat, foldable, duckbill, fish, arch, etc. The flat mask is easy to carry, but the tightness is poor; the folding, duckbill-shaped, and fish-shaped masks are easy to carry; the arched breathing space is large and the tightness is good, but it is not convenient to carry.
Medical masks are generally divided into disposable medical masks, medical surgical masks and medical protective masks according to the implementation standards:
Disposable medical mask
Disposable medical masks implement the recommended industry standard YY/T 0969-2013 "Disposable medical masks". This standard is suitable for covering the mouth, nose and jaw of the user, and is used in general medical environments to block the oral cavity and nasal cavity. A disposable mask that exhales or squirts pollutants. The main performance indicators include bacterial filtration efficiency, ventilation resistance, microbial indicators, residual ethylene oxide, biological evaluation, etc. The filtration efficiency of bacteria should not be less than 95%. The typical disposable medical mask structure is an ear-hook type.
Medical surgical mask
Medical surgical masks implement the mandatory industry standard YY 0469-2011 "Medical surgical masks", which is applicable to disposable masks worn by clinical medical staff during invasive operations. The main technical indicators include filtration efficiency, pressure difference, microbial indicators, residual ethylene oxide, biological evaluation, synthetic blood penetration, flame retardancy, etc. The filtration efficiency of non-oily particles is not less than 30%, and the filtration efficiency of bacteria Not less than 95%. The structure of a typical medical surgical mask is an ear-hook type or a strap type plane shape.
Medical protective mask
Medical masks can be divided into non-sterile and sterile types according to the microbial status of the product. Non-sterile masks should meet the microbiological control standards, that is, a certain amount of microorganisms are allowed, but they must be within the controllable range and be free of relevant pathogenic bacteria. Aseptic masks undergo the corresponding sterilization process to ensure sterility within the validity period.
Holymed Nonwovens Division was established in 1980 and is one of the earliest manufacturers of non-woven medical products in China. In 2003, holymed was rated as an excellent manufacturer of SARS anti-epidemic materials. In 2020, holymed has been listed as one of the national key manufacturers of COVID-19 anti-epidemic materials. At present, Holymed is one of the few domestic manufacturers that can produce AMMI grade 4 surgical gowns. Obtained FDA certification in 2011 and 510K certification for surgical gowns in 2012. For more than 40 years, holymed has accumulated rich experience in the quality control of OEM production for internationally renowned brands.
