Zhihu users
Practitioners of medical protective equipment!
The words "in line with the national standard" are written on the mask package. Under normal circumstances, this mask meets the requirements of the corresponding "implementation standards"!
Shi: Don't buy the wrong medical N95 mask. How to distinguish three N95 masks?
Analysis of preventive effect in COVID-19: N95 mask, medical N95 mask, KN95 mask and KF94 mask.
Self-inspection method for whether medical masks or ordinary masks are qualified;
The first step is to look at the corresponding implementation standards.
surgical mask
N95 medical protective mask: The standard GB 19083-20 10 Technical Requirements for Medical Protective Masks shall be implemented.
Medical surgical mask: the technical requirements of YY 0469-20 1 1 medical surgical mask standard shall be implemented.
Disposable medical masks: The standards of YY/T 0969-20 13 Technical Requirements for Disposable Medical Masks shall be implemented.
Non-medical mask
KN95 protective mask: comply with GB2626-20 19 "Respiratory Protection-Self-priming Filter Type Anti-particulate Respirator".
Daily protective mask: The standard GB/T 326 10-20 16 Technical Specification for Daily Protective Mask shall be implemented.
Is the second step a medical mask or an ordinary mask?
In addition to the above-mentioned "implementation standards", medical masks also depend on whether the "production enterprise" has the "medical device production qualification"
For example:
The outer packaging box or bag of N95 medical protective mask or medical surgical mask or disposable medical mask must be marked with "* * mechanical * *", which means "medical mask";
Production license number, such as * * * Xie Sheng * *.
Product registration certificate number or product technical requirement number, such as * * mechanical note * * *
The picture below shows Robust N95 medical protective mask, and the relevant numbers of two medical devices will be marked on the outer packaging box or packaging bag.
Steady Cotton Age kn95 Mask Entering Store Search: Medical Mask
Tmall
28.40
buy
Step 3: Look at the third-party quality inspection report marked "CMA"
If there is no quality inspection report on the page, ask customer service.
Artificial blood infiltration requirements
N95 medical protective mask, medical surgical mask and disposable medical mask have index requirements for "synthetic blood penetration".
KN95 protective mask and daily protective mask have no requirements for "synthetic blood penetration".
The filtration efficiency has clear requirements for the five masks mentioned above, depending on which mask it is.
Steady Cotton Age kn95 Mask Entering Store Search: Medical Mask
Tmall
28.40
buy
Step 4 Check the registration certificate number.
The figure below shows the numbers written on the package of "Steady N95 Medical Protective Mask", and the results obtained after the inquiry, as shown in the figure, are true and effective.