The Self-described “Mask Nerd” Aaron Collins, an aerosol scientist who tests masks in his home laboratory and rates their ability to filter out aerosol, joins Gayle Guyardo the host of the nationally ...

The 'Mask Nerd' of Minneapolis wants you to be safe Testing the quality of masks has made Aaron Collins a social media star and go-to source for wisdom on personal protective equipment.

Add Yahoo as a preferred source to see more of our stories on Google. Self-described “Mask Nerd” Aaron Collins is an aerosol scientist who tests masks in his home laboratory and rates their ability to ...