My work considers masks a safety Hazzard because they cause ou safety glasses to fog up so at work we have not wore masks at all. I'm glad ou have not had any issues wearing a mask but with 20+ years of breathing in dust from all types of material and the mist from all types of cutting fluids and oils that shiat. If you would see some of the filters on some of the filtration units that we use you could only imagine what our lungs look like. There are days where the mist clouds are so thick that you would sware something was on fire and that is with two exhaust fans running. Needless to say you don't see many 80 - 90 year olds running around that have worked in my field. They have tested the air and cutting fluids and have found led and numerous amounts of different carcinogens, so pardon me if I get sinus infections when I wear a mask. I'm not trying to be and ass but I effects everyone differently.I work in a field where we've been wearing masks 8-10hr shifts for the last 5yrs and people originally started wearing it below the nose cause "I can't breathe". I work in the cannabis industry so I'm frequently around the lazy, hippie type, just here for the check, crowd and everyone now wears a mask correctly, full time. No issues. I think it's a mental thing. I wear them outside of work the few places I go not only because of the requirements but because I don't want to deal with anyone whining..
This is a filter where air gets sucked it the machine to keep the computer cool, gets changed biweekly.