In the situation where it is difficult to find a KN95 protective mask, many people have found that a KF94 protective mask has appeared on the market. In fact, KF94 protective masks are produced according to Japanese standards and have a very similar epidemic prevention level to the Chinese KN95 protective masks. So how long can KF94 protective masks be used? How much is one KF94 mask?

How long can KF94 protective masks be used?

How long can KF94 protective masks be used?

KF94 in the KF94 protective mask stands for Japanese standard, and the commonly used KN in general stands for Chinese standard, and N stands for international standard. Data 94 means that the filtration rate of fine particles with an average diameter of 0.4 μm exceeds 94%.

Therefore, the protective ability of KF94 protective masks is basically equivalent to that of KN95 protective masks and N95 protective masks, not only can effectively prevent and block the virus, but also have a certain inhibitory effect on the virus.

KF94 protective masks are not disposable masks either, and the normal mask can be used for up to 48 hours. During the outbreak period, experts have indicated that after the long-term use of protective masks, it may affect the post-use protective effect, so it is recommended to change N95 level protective masks every 4 hours.

However, for the general public who do not come into contact with infected patients, the wearing time of the mask can be moderately extended, otherwise, it will also accelerate the shortage of medical consumables.

It should be noted that whether it is KF94 protective masks or KN95 protective masks, once the protective mask is damaged, it cannot be detailedly adapted to the face, or is exposed to other types of environmental pollution, immersion, and other conditions, it cannot be used anymore.

How much is one KF94 mask?

KF94 protective masks are currently not easy to purchase. According to the shopping experience of netizens, the price of KF94 masks purchased from foreign websites is about 4 yuan per piece, and some netizens have purchased KF94 protective masks on Chinese e-commerce platforms at a price of about 15 yuan per piece. Some news media have reported that Japan is also producing and processing protective masks, and the supply situation of masks may improve to some extent in late February.