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.

Aaron Collins goes by the "Mask Nerd" now that his unofficial job is reviewing face masks in his bathroom. Collins, an aerosol expert, compiled a list of the best child-sized masks to protect against ...

MINNEAPOLIS — Aaron Collins is standing in his bathroom, holding a white mask to his face while stretching its straps to the back of his head. Here in the “lab” at his Minneapolis home, Collins is ...