Disclaimer: this face mask is not meant to replace the surgical face mask, it is a contingency plan for those who have no avail to surgical mask in the market. Proper use of a surgical mask is still the best way to prevent virus infection.
Wear the face mask properly, ensure no air is breathing in from sides of the mask.
Handle the face mask carefully, wash it thoroughly every day. Do not touch the contaminated side of the face mask, wash your hand if you accidentally touch it.