I was gonna say the same but in more basic terms.. when I put my a/c on the condensation vanishes literally within seconds
Or to be more accurate, when I turn the air direction to 'up' which automatically turns ac on for that very reason
Side note when we used to go paintballing back in the day everyone used to use anti fog spray otherwise you're running blind the minute you break a sweat
Something like this
https://www.amazon.co.uk/Hendlex-Coa...dDbGljaz10cnVl
No doubt others are available as well, might be worth a try I suppose until you get the issue sorted properly