They are being fitted for N95 masks. You put the hood on, they spray inside hood with an agent, if you taste/ smell the agent ( usually a sweet taste) then the mask did not seal. If you don't detect mask seals.
I work in healthcare, we did this every year and assigned a mask if you had to work in negative pressure or high contagion rooms.
Those are testing tents that we use when we test if the masks we are wearing are keeping out the small micron particles. Hospitals do yearly tests for employees for use with Tuberculosis patients etc.
They are being fitted for N95 masks. You put the hood on, they spray inside hood with an agent, if you taste/ smell the agent ( usually a sweet taste) then the mask did not seal. If you don't detect mask seals. I work in healthcare, we did this every year and assigned a mask if you had to work in negative pressure or high contagion rooms.
who are the idiots in the lower left wearing the "Stupid Helmets"?
Those are testing tents that we use when we test if the masks we are wearing are keeping out the small micron particles. Hospitals do yearly tests for employees for use with Tuberculosis patients etc.