Originally posted by ahab
You dont need hazmat sign with compressed air. You are a douche bag.
Did you go to school past the 6th grade. Well if you get there one day science class has an element chart and under gas it will say C02 which is air. And here is the Fedral HAZMAT Law link. You might want someone to read it to you.
http://hazmat.dot.gov/regs/overhml.pdf