There are many factors that contribute a decision in what makes the best mask for you. Often the primary aspects are comparing "breathability" to filtration efficiency, and how the masks fit. We can give guidance on breathability, but it is harder to suggest a fit due the different sizes of faces that will be wearing the mask. 

	Metro	Active
FIT	Very Good	Excellent
FLOW	Very Good	Excellent
PFE	Excellent	Average
TECH	ZioShield	ZioShield
PRICE	$32	$25
USE	Travel, Meetings, Commute, crowded environments	Sports, Outdoor activities, low-risk environments
SIZE	8" W x 5.25" H (Regular)	8" W x 5" H