Frequently Asked Questions

Q: What is the difference between 3-ply face masks?

A: Low grade general purpose masks are 50% filtration. Should NOT cost more than 10 to 15 cents. Fine for walking outside & NOT spreading virus if you are infected.

Q: What type of 3-ply mask should I be wearing?

A: If inside a building, wear mask with at least 90% filtration. They cost 30 to 50 cents each. NOT medical grade but effective with social distancing and washing hands.

Q: What type of mask is used by NF staff?

A: KN95 mask is medical grade with at least 95% filtration. Price ranges from $1.99 to $3.49. Must meet US or European testing standards. Can be re-used multiple times.

MASK WEARING 101: How To Properly Use & Re-Use A Mask

FAQs by World Health Organization (WHO)