“We found that on cough stimulations [with the mask], there was a very large reduction in aerosol that would come from the mannequin ? greater than 95% in most cases. It greatly showed the benefit of wearing a mask during a flight for these tests,”
Mask Choice Given the range of mask choice available, the team chose to focus on surgical masks, which are the most likely to be handed out when other masks are not available, or not brought by a traveler. The masks used during testing were standard pleated 3-ply surgical masks supplied by United Airlines.