Face mask

[Vaughn]

<--- Looking at my face -- no mask is going to keep fumes from coming thru that beard. A badly fitting mask can be worse than no mask -- thinking one is safe, one can expose oneself to the fumes.
Ventilation is almost worthless if fumes are allowed to pass one's head on their way out...no matter how many air 'changes' happen per hour.

After being retired for 8 yrs from managing a uni darkroom, I am beginning to be able to smell fixer again. My nose had numbed to it decades ago (unless it was concentrated.)

 

[tahomaphoto]

<--- Looking at my face -- no mask is going to keep fumes from coming thru that beard. A badly fitting mask can be worse than no mask -- thinking one is safe, one can expose oneself to the fumes.
Ventilation is almost worthless if fumes are allowed to pass one's head on their way out...no matter how many air 'changes' happen per hour.

After being retired for 8 yrs from managing a uni darkroom, I am beginning to be able to smell fixer again. My nose had numbed to it decades ago (unless it was concentrated.)

True on having a well-fitting mask; it is essential for a respirator to fit properly. I used to be able to scuba dive with a stubble of a mustache, but if it got longer than 5mm or so, it would impair the fit.

Erik

 

[DREW WILEY]

Slather your beard with activated carbon first. That will trap any organic vapors. Then shave it all off after the session. Or just go around with a toxic black beard looking younger than you actually are. You can also filter your incompletely mixed darkroom solutions through it.