What is the difference between medical masks, N95 masks, KN95 masks

2. N95 mask: American NIOSH certification, non-oily particulate filtering efficiency ≥95%.

3. European N95 mask: European FFP2 standard.

4. KN95 mask: It complies with Chinese GB 2626 mandatory standards, and the filtration efficiency of non-oily particulate matter is ≥95%.

The test methods for the filtration efficiency of the above four grade masks are exactly the same! Therefore, the filtration efficiency levels are consistent.
 

Medical staff must use medical protective masks in the following situations:

1. Close contact with infected patients;

2. Perform operations that may generate aerosols, such as sputum suction and intubation;

3. Possible operations such as splashing of body fluids.

In other cases, you can wear a N95 mask or a KN95 mask. The key to wearing a mask is the close contact with the face. You cannot use a protective mask with a respirator. As for the surgical mask, it is in accordance with yy0469-2011 medical surgical mask.

The core standards of industrial masks and consumer masks are the same. KN95 according to the GB2626 standard is enough. KN90 is actually enough. Medical personnel can only splash body fluids. It is only necessary to be strict when the environmental concentration is high.

KN95 / N95 and above particulate protective masks: the protective effect is better than medical surgical masks and disposable medical masks. It is recommended for field investigation, sampling and testing personnel. The public can also wear them in highly crowded places or closed public places.

The specific scenarios of wearing KN95 / N95 and above particulate protective masks include when you are in a densely populated public transportation place and when you are taking a vehicle; when entering the residential space of isolated people, do not touch and adjust the masks; when conducting investigations of suspected and confirmed cases ; For environmental cleaning and disinfection personnel, corpse disposal personnel.

In addition, for personnel in public transportation, taxi drivers, service personnel in public places, armed police, traffic police, security personnel, media reporters, couriers, etc., because there are many people in daily contact, there is a risk of infection. It is equipped with disposable medical masks or medical surgical masks or KN95 / N95 and above particulate protective masks.

Special circumstances require timely replacement:

In some special cases, it can not be worn for a long time.

1. Breathing is difficult.

2. The mask is damaged.

3. The mask is contaminated.

4. There is odor in the mask.

5. The mask and face can no longer fit.

These situations require timely replacement.