You would think that even if they don't give a shit about the techs, the trainers of racers yet to have their own tech would see the contradiction between regular V02max work and crappy tuning conditions.
@Primoz If FIS and the national federations don't give a fuck, why don't the alpine techs themselves do more to protect themselves? Resignation, lack of awareness, or what?
No real idea. Something is sort of pride (as stupid as it sounds), as they have been doing this for ages, and they won't look like pussies with masks now. Personally this is really stupid thing, with which I never had issues. I started using proper mask when I was still racing and getting my skis ready (it's even more important then, as you want to be able to push those climbs without some crap from previous evening in your lungs), and when I came to WC as serviceman, I kept it even if noone around was using it and there was plenty of people making fun of me because of it. Most of them changed their mind later, and on the end, every single one was using it all the time. But that was xc.
Then when new guy comes, and everyone are without masks, as it's so much more cool, it's kinda normal they won't be using it either, and few years later, they fit into previous mentioned category.
Another thing is comfort. Just think last few years, how much uproar there was, when people were forced to put little paper napkin infront of their mouth when they went to store. It was almost end of the world. These paper napkins are completely unnoticeable compared to mask with filters for vapors, where breathing is at least to some extend obstructed. Now imagine having proper mask with real filter and you are brushing (not with roto brush) 30 pairs of skis and sweating like during hardest run in summer. I can tell you it's not all that much of fun to have real mask on for 10+h/day, even if it's good one with battery powered ventilator so you can breath sort of normal. Those without ventilators and just with filters are whole lot worse (luckily I didnt use these much).
And then there's third thing... ignorance. There's still plenty of people in this business who have no idea that this stuff is anything but healthy. Add first reason I mentioned and you get someone who will never put mask on regardless what.
But as
@scott43 wrote things can change, and things did change, at least in XC. Nowadays, even with all ventilation, and suction mounted to irons and roto brushes, everyone are using masks when anyone in truck/room is waxing. So yes it can change, but it takes some time.
Obviously they can't properly handle not even one task, so it's kinda too much to expect they could handle two