3m is a major international brand of personal protective equipment. We often see people wearing 3m masks. There are certain differences between n95 masks and 3m masks. Everyone should pay attention when choosing.

What is the difference between N95 masks and 3M masks?

The main difference between N95 masks and 3M masks is the different definitions:

1. 3M is a mask brand name< /p>

All products produced by 3M Company can be called 3M masks. There are different types of masks under this brand: such as thermal masks, anti-particle masks (dust masks), medical protective masks and medical surgical masks, etc. There are different types of masks under 3M masks, such as 3M 9002 (headband type, KN90), 3M 9001 (ear strap type, KN90), 3M 9002V (headband type, with valve, KN90), 3M 9502 (KN95), 3M 8205 (cup type, KN95), etc.

2. N95 is a mask certification standard

As long as it meets the N95 standard and passes the NIOSH review, it can be called an "N95 mask." The N95 mask has a filtration efficiency of more than 95% for particles with an aerodynamic diameter ≥0.3?m. The aerodynamic diameter of airborne bacteria and fungal spores mainly varies between 0.7-10μm, which is also within the protection range of N95 masks.

The difference between 3m masks and n95 masks

3M is both the name of the company and a registered trademark. 3M masks refer to all products produced by 3M that can be called masks, such as thermal masks, anti-particle masks (dust masks), medical protective masks, and medical surgical masks. N95 refers to the protection level of the mask, which means that the filtration efficiency of the mask against non-oily particles with a diameter of 0.3μm is ≥95%. 3M is both the company name and a registered trademark. 3M's full name is Minnesota Mining and Manufacturing Company. 3M is a global diversified technology company. The anti-particulate mask products sold by 3M in China originate from different origins. In addition to obtaining the certification required by the place of origin, they all obtain China Labor Safety (LA) certification. N95 refers to the protection level of the mask. It refers to a mask with a filtration efficiency of ≥95% for non-oily particles with a diameter of 0.3μm.

3M masks refer to all products produced by 3M that can be called masks, such as thermal masks, anti-particle masks (dust masks), medical protective masks, and medical surgical masks. Among them, only medical protective masks and medical surgical masks are suitable for blocking droplets, blood, body fluids and secretions. 3M's medical protective masks are divided into two types: imported and domestic. Imported 3M medical protective masks (such as 1860) have been certified by the U.S. Food and Drug Administration (FDA), the U.S. NIOSH (National Institute for Occupational Safety and Health), and meet N95 level requirements. They have also been certified by the China Food and Drug Administration (SFDA) ) certification, in line with Chinese national standard GB19083-2010 "Technical Requirements for Medical Protective Masks". Domestic 3M medical protective masks (such as 9132) have been certified by the US NIOSH (National Institute for Occupational Safety and Health) and meet the N95 level requirements. They have also been certified by the China Food and Drug Administration (SFDA) and comply with the Chinese national standard GB19083-2010. Technical Requirements for Medical Protective Masks".

Precautions for the use of N95 masks

1. Wash your hands before wearing the mask, or avoid touching the inner side of the mask with your hands to reduce the possibility of the mask being contaminated.

2. Distinguish the inside and outside, top and bottom of the mask clearly.

3. Do not squeeze the mask with your hands. The N95 mask can only isolate the virus on the surface of the mask. If you squeeze the mask with your hands, the virus will soak through the mask with the droplets, which may easily cause viral infection.

4. Try to ensure a good seal between the mask and the face. The simple test method is: after putting on the mask, exhale forcefully so that the air cannot leak from the edge of the mask.

5. The protective mask must be close to the user's face. The user must shave cleanly to ensure that the mask can fit tightly with the face. The beard and any other material between the mask sealing pad and the face Anything can cause the mask to leak.

6. After adjusting the position of the mask according to your face shape, use the index fingers of both hands to press the nose clip along the upper edge of the mask so that it is close to the face.

Under what circumstances should KN90 masks and KN95 masks be used

1. Usage scenarios

Hospital isolation area: Medical protective masks GB 19083-2010 are required, even Personal protective clothing and goggles are required to seal oneself 100%. Non-medical personnel do not need to wear these.

Potentially contaminated areas in hospitals: Medical surgical masks YY 0469-2011 or KN95 masks are acceptable. If you are worried, you can wear an ordinary disposable mask on top of the N95.

Daily life: subways, buses, supermarkets, shopping malls, I think KN90 is fine.

You need to pay special attention when going to the hospital. The level of protection required in daily situations is not that high, and a mask is enough.

2. The fit of the mask

Fitting and sealing is the key issue. I have a high nose bridge, and many masks are breathable above the bridge of the nose, and the sealing is not good enough. A mask that fits tightly can be seen to bulge and deflate as you breathe.

3. In terms of sealing effect

Head-mounted type > Ear-hook type, the head-mounted type is easy to fit tightly, while the ear-hook type needs to be tightened, which will strangle the ears. pain.

KN99>KN95>KN90, several brands conform to this rule.

Some of the more expensive silicone frame masks fit very well. I have also bought the Best Airmotion children’s mask. This mask is relatively comfortable, but even so, wearing a mask is not Very comfortable. Comparing KN90 and KN95, my best suggestion is that for daily use, after buying KN90, you should spend time figuring out how to wear it and get the fit right. Now it is no problem for daily use. If you go to the hospital, consider buying a more expensive, high-grade mask. As for goggles, swimming goggles, windproof goggles, and ski goggles, I think any that can achieve a tight fit will be fine. If you are worried, you can also use non-woven fabric (or disposable kitchen rag) with plastic wrap to seal the places where air leakage is easy. After all, the principle of masks is simple, things are dead and people are alive.