Difference between medical surgical mask and disposable mask
1, medical surgical mask
"Medical surgical mask" is a commonly used medical mask in operating rooms and other environments where there is a risk of splashing body fluids and blood. It can prevent blood and body fluids from polluting the wearer through the mask, and at the same time, the filtration efficiency of bacteria is above 95%, but the filtration efficiency of particulate matter is limited, and most of them are rectangular in design, which is not as close to the face as the medical protective mask. Common medical surgical masks are strap type and ear hanging type. At present, the common masks on the market can be divided into three categories: medical surgical masks, medical protective masks (N95 masks) and ordinary cotton masks. Medical surgical masks can block 70% of bacteria, N95 masks can block 95% of bacteria, and cotton masks can only block 36% of bacteria. Therefore, it is recommended to choose the first two masks. If you go to public places and don't touch patients, it's enough to wear a medical surgical mask without excessive protection, but if you touch patients, you should wear a biological N95 mask.
2. Disposable masks
The common disposable mask is a fiber mask, and its flow blocking principle is a mechanical blocking effect. Through this layer-by-layer mechanical barrier, large particles can be blocked, but particles with a diameter less than 5 microns can not be blocked, let alone particles of PM2.5, but medical masks and medical disposable masks can block particles with a diameter greater than 4 microns, so ordinary masks need to wear 16 layer to play the role of medical masks. Medical protective masks should not only have high hygiene requirements, but also have the function of effectively preventing liquid splashing. Because there is the possibility of blood or infectious body fluids splashing during the operation, this splash has a certain pressure and is not a common liquid infiltration. The ability of medical mask material to block pressurized liquid should be relatively high. Only in this way can medical personnel be effectively protected. Therefore, in the standard of medical protective masks, special testing methods are used to test the liquid resistance of such products, while 3M dust masks used in general industrial environment do not need such special requirements, and naturally there is no such provision in the testing standard. In addition, medical protective masks are not allowed to have exhalation valves. This is because when the medical protective mask is allowed to be used as a surgical mask, if you wear a mask with an exhalation valve, the microorganisms carried in the exhalation will be directly discharged from the mask, posing a threat to the surgical patient. Many industrial protective masks have the design of exhalation valve, but the price of dust mask with exhalation valve is much higher than that without valve.
Usage of medical surgical mask
1, whether it is a disposable mask or a medical surgical mask, there are actually two sides. Take a disposable mask, with dark color as the front and the front facing outwards, and there are metal strips on the medical surgical mask;
2, facing the face should be the opposite of the medical mask, that is, the lighter side. It should also be noted that the part with metal strip should be above the mask. Don't wear it backwards.
3. After distinguishing the front, back, upper end and lower end of the mask, wash your hands first, and then hang the ropes at both ends on your ears after confirming whether the mask is correct.
4. The last step, which is also the most important step, is also the metal bar problem mentioned above. After wearing the mask, you need to press the metal strips on both sides of the bridge of the nose with both hands, so that the upper end of the mask is close to the bridge of the nose, and then stretch the mask downward, so that the mask will not wrinkle, and it is best to cover the nose and mouth, so that the effect of the medical mask will be better.
Where can I buy a medical surgical mask N95 in Wuhan?
Medical surgical masks can be bought in general stores. This kind of mask is common, but the medical surgical mask is just one of many non-woven medical masks. Therefore, when purchasing, we should pay attention to identify the masks marked with the words "medical surgical masks" on the outer packaging, and such masks are the real medical surgical masks. At present, there are few places where you can buy medical N95 masks, and you can only buy them in a new pharmacy or medical device company located in Hangkong Road, Hankou. If you can't buy N95 masks, you can choose medical surgical masks. (Key point: N95 mask is disposable) The purchase of medical surgical masks is dazzling. I suggest you identify the products marked with "medical surgical mask" in the picture, and make sure that the picture is consistent with the real thing before buying ... After all, there are many sellers and brands that open various disposable masks on Taobao, and the names of medical masks, medical nursing masks and medical surgical masks are mixed ... The principle of personal purchase is to buy them in the flagship store as much as possible, or upload their industrial and commercial qualifications. If you don't know the brand of the product, you can check the product registration number and medical device standard in official website and the State Administration of Medical Supplies to ensure that you have bought a surgical mask with good protective ability.
Query prompt:
1) At present, the latest industry standard for medical surgical masks is YY0469-20 1 1 medical surgical masks.
2) Inquiry portal of National Medical Products Administration: data inquiry link.
3) Inquiry step: Find the product registration certificate number on the front of the purchased goods (similar to the words Xie Su Zhun Zhun Zhun Zhun 20 16 xxxxxxxxx), and enter the red box position as shown in the figure below to see the corresponding inquiry record. Click to view the details and confirm that the product name is "Medical Surgical Mask" and the registration certificate is still valid.
How to prevent virus in daily life
1 is to wear a mask, which is the most direct and effective way to eliminate the source of infection.
The second way is to wash your hands frequently, because you will often come into contact with some unhealthy viruses in public places, so wash your hands frequently at this time.
The third way is to avoid going to crowded places as much as possible and reduce the exposure source of virus infection.
The fourth way is to establish a good schedule through exercise, go to bed early and get up early to improve immunity.
The fifth is to open windows at home to keep the air circulating in the home and prevent the spread of the virus.