Each N95 mask can be reused for only three times.
Best way to sanitize N95 mask is keeping it under direct sunlight for four days and wear it again on the fifth day. So, you need to purchase a set of five N95 masks at a time.
However, if you are not working in any healthcare setup or taking care of any COVID19 patient, there is no need to wear any N95 mask. You can wear three-layered surgical mask with a layer of kitchen tissue inside.
I have provided the procedure to prepare hand sanitizer at home by using the formula provided by the World Health Organization on my YouTube channel. You can use this method by visiting my YouTube channel
https://www.youtube.com/user/ankurbarua26
Next Steps
you can consult me online for any kind of health issues
Health Tips
do not use any chemical to disinfect N95 mask