Hello dear science-loving steemians friends
Certainly SARS-COV-2 is present in everyone and is a reality that continues to affect us all due to its high level of contagion and also due to the new variants of the virus, which continue to appear despite the fact that the level of mortality has been controlled to some extent, there are people who wash their masks and use them again even though they are disposable or disposable, the virus particles travel everywhere once they are in contact with our mouth cavity, nose and eyes they will manifest in our organism, today we will know how long Covid remains in our mask.
According to scientific evidence from The Lancet, disposable facemasks made of a type of resistant paper material containing an outer layer and an inner layer, the virus can remain for up to a full week after exposure to SARS-COV-2 particles and will therefore contain viral load, so the amount of virus will be 0 to 1% initially, so it is recommended that disposable facemasks cannot be reused as their protection only lasts for a few hours.

Although it is known that these masks are the most effective in preventing us from catching the virus if used for a prolonged period of time, they will not protect us as they will be infected and, on the contrary, will help us to spread the virus and infect other people. Both the disposable masks and the KN95 and K95 face masks, when putting them on, we must wash our hands thoroughly with soap and water, dry them and make sure they are free of germs so as not to infect the masks.

When we have the masks on and they become damp, we must immediately remove them as they can modify the temperature of the virus and encourage faster contagion if we come into contact with it.
Finally, it should be noted that the life of the virus in the masks will depend on the temperature at which we find ourselves, since if we are at 4 degrees Celsius the virus can remain in the mask for 15 days, i.e. two weeks, but on the other hand if the virus is subjected to 70 degrees Celsius for 5 minutes it will die in the masks.
On reflection, if you use a disposable mask, you should only wear it for no more than 5 hours, once it is used you should throw it away, do not reuse it.

Reference Informative:

https://fundacionpielsana.es/prevencion/tiempo_que_puede_permanecer_el_coronavirus_en_una_mascarilla

@stefant2007