Just posted on green cleaning, and safe Chems...Using a chem with a health class rating o, or, a 1. OSHA approved...Be safe people!...When you get a customer with breathing issues, your problem, will just begin....We use earth one(chemspec)..From the truck mount, and Saigers free and clear, (pre spray)...And a MSDS sheet to prove it..It's not worth it..Turn up ur heat, and work slower.. both of these, will work..