When you wear it for a day. For longer periods one also needs to be trained to take care of the PPE. Cleaning, storage, retc.
Half the population have IQ less than 100. You are going to set up training stations or the PPE will fail soon for a large percentage of population.
Mild soap and water can be used to clean the seal, and that’s it. Anyone can do that without any special training.
When you wear it for a day. For longer periods one also needs to be trained to take care of the PPE. Cleaning, storage, retc.
Half the population have IQ less than 100. You are going to set up training stations or the PPE will fail soon for a large percentage of population.
Mild soap and water can be used to clean the seal, and that’s it. Anyone can do that without any special training.