There's one I'm a member of here, great range. 25 yards (wish it was longer), bulletproof glass between the shooting lanes. Very well ventilated, in fact I sometimes think the air is better inside than outside (and I'm not in LA, Chicago, Denver, or New York City).
Ventilation and lighting are the key..
l've heard police work is dangerous. Yes, that's why l carry a big gun. Couldn't it go off accidentally? l used to have that problem. What did you do about it?
l just think about baseball. -Leslie Nielsen