What about the filtration efficiency of surgical masks?
In daily life, we often choose to wear a mask, this is due to the increasingly serious environmental problem has been bothering us, in order to have a healthy body, to enjoy a better life and have to wear a mask.
As everybody knows, mask according to its use place is different, the use of material is different, the mask can also be divided into gauze masks, surgical masks, disposable masks, etc., these are used as filter dust and bacteria in the air, so the filtration efficiency of surgical masks?
Let's get together.
Complex surgical masks as important protective equipment, classification, scope and product protection performance also each are not identical, mainly including medical respirator, medical surgical masks and ordinary medical masks, etc.
In 2005 the ministry of health issued "acute respiratory fever patients regulations require physicians in the process of accepts, with respiratory symptoms (nasal congestion, cough, etc.), acute respiratory tract in patients with fever, must first provide disposable surgical masks, avoid cross infection, in addition, the infectious diseases department and physician triage point to standard protective measures, all need to wear medical protective mask.
The fear is that some domestic current surgical masks because the reason such as the standard, quality process, does not have very good protection effect, and different types of surgical masks play a protective role also each are not identical, such as domestic medical non-woven masks for aerosol particles, only 20% of the protection efficiency;
The filtering efficiency of 12 gauze masks is only 11% ~ 15%, which can not prevent the infiltration of artificial blood, staphylococcus aureus and escherichia coli F2 phage.
The filtration efficiency of activated carbon filter respirator is 11% ~ 17%, which cannot block the infiltration of artificial blood, but can block the infiltration of staphylococcus aureus and e. coli F2 phage.