I've been watching your show for quite some time and I think that it's very interesting and at times comical at best. But I have a problem with Zack and him wearing his respirator. I've been a paint and body repair man since 1993 and I've been watching him walking around with it on but he really needs to take the cover off of the charcoal cartridges. Because we only put the covers on the charcoal cartridges when we're done with them for the day. With the covers on he'd have serious breathing problems.