KN series is the Chinese standard,
FFP series is the European standard,
The higher the number, the higher the level of protection.
It's easier to understand if you use a formula:
FFP3>FFP2=N95=KN95>KN90
A V at the end of a number means a valve.
All 95's are N95 series.
90 series is also OK, 90 series is not as high as 95 protection level, but also can resist more than 90% , than the general mask is too good.
Generally, used to resist viruses and influenza, N95 series enough
Given that we are more confused about the choice of masks, for fear of donating the wrong one can not be used, here to give you an introduction to the masks of several different standards. Mask models and implementation standards are printed on the left side of the mask face, you can follow this to buy masks.
One, the mask is divided into three standards:
n95 is according to the U.S. standard NOISH production, manufacturers are 3M and Honeywell;
FFP2 is the European standard EN149;
KN95 is the Chinese standard GB2626-2006.
Wherever masks printed on the implementation of the standard is the three kinds of qualified The masks are all qualified.
Two, medical n95 masks need to prevent high-pressure liquid splash, so higher standards than ordinary n95; 3M, for example, model 1860 and 9132 is the most commonly used medical protective masks.
In addition, there are children's models of 1860s. ordinary people or medical personnel who are not exposed to high-pressure liquid splashes can choose ordinary n95 masks that meet the NOISH standard.
Three, FFP2 standard masks of European manufacturers have Germany's UVEX and so on; FFP3 is a higher level (99) of protection masks.
Four, the Chinese standard GB2626-2006 refers to the ordinary KN95 mask standard.
Medical KN95 mask standard is GB19083-2010.
(Similarly, ordinary people and medical personnel who are not exposed to high-pressure liquid splashes can use ordinary KN95 masks.)
Fifth, another common question is, masks with valves or without valve masks? Ordinary masks with valves are more comfortable.
Medical masks are not allowed to have valves.
When the average person is infected or suspected of being infected, a medical mask without a valve must be chosen.
Sixth, medical surgical masks, the common standard is YY0469-2010, or YY0469-2011, which is printed on the individual outer package of each mask.
1860 / 1870 + This model is used for medical operations, anti-wet dust, etc.
8210 / 8511 This model is used for construction, anti-dust, etc.
9210 + This model is used for industrial engineering, anti-sand dust and corrosive materials, etc.
From the foreign generation, it is very likely to buy the construction of the N95 dust masks, completely not Anti-virus, we must look carefully ~ I do not know is the buyer of ignorance, or knowingly but intentionally: the following is a large number of buyers of the two models, including the famous 3M brand, although they are N95, but purely construction dust masks, only anti-suspended particles / dust / pollen, etc., not anti-virus, very expensive but for the new type of pneumonia has no effect, be sure to look at it clearly only good.
N95 is the level of the mask, when you buy it, you must keep in mind that the model 1860 / 1870+, or have anti virus, surgical, flu-fighter words.