Table 1.

Information of the Investigated Face Coverings

face coverings	neck gaiter	cloth mask	surgical mask	N95 respirator
components	90% polyester and 10% spandex	100% cotton	polypropylene18	polypropylene, polyester, and nylon materials18
style	elastic closure	ear loops	ear loops	pouch, headbands
layer	single	triple	triple	multiple
fabric structure	woven	woven	nonwoven	nonwoven
filtration efficiency	0–40% for 0.6 μm aerosols19,20	20–30% for 0.4 μm aerosols21	≥90% for 0.3 μm particulates22	≥99% for 0.3 μm particles13,22
size (cm2)	24 × 40	16 × 8	17 × 9	24 × 9
manufacturer	anstronic	port authority clothing	Albatross MFG	Kimtech