6 things you must know about masks

After the outbreak of the Novel coronavirus pneumonia, masks, as the first protection tool for self-preservation and quarantine, have a tendency to escalate from ordinary medical supplies to strategic supplies. So what do you know about masks?

The N series is an American standard,

KN series is Chinese standard,

The FFP series is a European standard,

The higher the number, the higher the protection level.

It is easier to understand with a formula:

FFP3 ＞ FFP2 = N95 = KN95 ＞ KN90

A V at the end of the number indicates that there is a valve. All 95 starts with the N95 series. The 90 series is also acceptable. The 90 series does not have a high protection level of 95, but it can also resist more than 90%, much better than ordinary masks. Under normal circumstances, used to fight viruses and flu.

1. Masks are divided into three standards:

N95 is produced according to the American standard NOISH, the manufacturers are 3M and Honeywell;

FFP2 is the European standard EN149;

KN95 is the Chinese standard GB2626-2006.

All the three types of masks with the implementation standard printed on them are qualified masks.

Second, medical N95 masks are higher than ordinary N95 standards

Medical N95 masks need to be protected against high-pressure liquid splashes, so they have a higher standard than ordinary N95; taking 3M as an example, models 1860 and 9132 are the most commonly used medical protective masks.

In addition, there are 1860s for children. Ordinary people or medical personnel who are not exposed to high-pressure liquid splashes can choose ordinary N95 masks that meet the NOISH standard.

3. About FFP2 and FFP3

European manufacturers of FFP2 standard masks include German UVEX, etc .; FFP3 is a higher level (99) protective mask.

4. About GB2626-2006

The Chinese standard GB2626-2006 refers to the standard of ordinary KN95 masks.

The standard of medical KN95 mask is GB19083-2010.

(Similarly, ordinary people and medical personnel who are not exposed to high pressure liquid splashes can use ordinary KN95 masks.)

5. With or without valve mask

Masks with or without valves? Ordinary masks with valves are more comfortable. Valves are not allowed for medical masks.

When ordinary people are infected or suspected to be infected, medical masks without valves must be selected.

6. Models of medical surgical ports

Medical surgical masks, the common standard is YY0469-2010, or YY0469-2011, which is printed on the individual outer packaging of each mask.

1860 / 1870+ This model is used for medical operations, anti-moisture dust, etc.

8210/8511 This model is used for construction engineering, anti-dust, etc.

9210+ This model is used for industrial engineering, anti-dust and rot