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What Does N95 Mask Mean? How Often Do I Need to Change?

As the number of people infected with COVID-19 continues to increase globally, the best preventive measure is to go to less crowded places. If you must go out, you must wear a mask and wash your hands frequently. There are many kinds of masks. We often say that it is better to wear N95 masks. What is N95 mask? How long can I wear this kind of mask?

  1. What does N95 mask mean?

N95 mask is one of the nine particulate dust masks certified by the National Institute of Occupational Safety and Health in the United States, which has a particularly strong protective effect. It means that fine dust larger than 0.3 microns, including PM2.5, as well as small dust, bacteria, and viruses, can be filtered out, with a filtering effect of more than 95%.

  1. What is the difference between N90 and N95 masks?

N90 and N95 are the protection levels in the national mask standard. Different levels of protection represent the protection and filtering capabilities of masks, which are the ability to block dust, bacteria, and viruses.

The filtering capacity of N90 is worse than that of N95. The N90 mask can block 90% of the dust from the mask. N95 is more resistant and may resist more than 95% of dust, bacteria, and viruses.

So the difference between N90 and N95 lies in the ability to block dust. If you need stronger protection, you need to choose a higher grade mask, such as medical supply n95 mask.

  1. How often should the N95 mask be changed?

N95 masks do not have a fixed replacement time, because they are used in different environments, the time used by each person, etc., the dust holding capacity of N95 masks is different, and the maintenance method of using N95 masks is different, which will affect the service life of N95 masks.

Generally speaking, if the following conditions occur, you must change the mask. For example, the N95 mask is damaged or has been contaminated. Another situation is that after wearing the mask, you feel poor breathing, indicating that the mask’s net has been blocked and this mask needs to be replaced.

In addition, masks cannot be reused after washing.

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