Do masks work? Uncle Rob investigates by simulating coughs with aerosol starter fluid, mannequin heads and a propane torch.
Disclaimer: Uncle Rob is a "professional" Don't be a moron.
Looks like they work pretty good.
Do masks work? Uncle Rob investigates by simulating coughs with aerosol starter fluid, mannequin heads and a propane torch.
Disclaimer: Uncle Rob is a "professional" Don't be a moron.
Looks like they work pretty good.
