In my dreams, my 50,000 sq.ft. underground grow room has an entry passageway that can trap intruders and then be pumped full of carbon monoxide, just to make sure they don't intrude a second time. LOL

What kind of an idiot would fool around with carbon monoxide? No offense to the original poster, but it's time for a reality check.
PharmaCan Reviewed by PharmaCan on . Carbon Monoxide, DIY production Pure carbon monoxide is easily made with some simple chemistry and ingredients. Simply mix 2 part formic acid with one part sulfuric acid. 4.4.14 Production of Carbon Monoxide Obtaining the ingredients is not hard or very expensive. Formic acid can be gotten here: Formic Acid, 96%, Reagent, ACS, Chemistry Supplies and Laboratory Chemicals Sulfuric acid is avaliable through some auto parts stores. It's used as electrolyte in auto batteries. I have seen it at Wal-Mart in the automotive Rating: 5