I like the glass tubes because they would show ANYTHING left behind, rather than the paper towel that big jim did (not knocking big jim.. love him to death) which wouldn't show anything that was white or very lightly colored (like the fog on my windshield) I suppose a flat piece of glass would likely show similar results, but the glass tube would show the vapor prior to any additions from your own body.
Kit - That's an interesting thought, but new/old atomizers haven't had any effect on the thickness, color, or how fast the fog covers my windshield that I have noticed. Though it would make for yet another interesting variable to test.
Kit - That's an interesting thought, but new/old atomizers haven't had any effect on the thickness, color, or how fast the fog covers my windshield that I have noticed. Though it would make for yet another interesting variable to test.