Hello everyone, I just had another question. I have a huge jar of paint thinner and all kinds of chemicals that are broken down that I need to get rid of. When I am done airbrushing I spray in the jar when cleaning it out. But I want to know how do I get rid of all these chemicals. Don't worry, I don't dump it in the ground or down drains![:0] I live in the US, so do I contact a chemical center or do I open the lid and let it evaporate outside? That might be bad. I haven't done anything yet with it but it's getting full and I need to do something with it. Thanks everyone.