No, smokers don't know how they smell. I was a smoker for years, and when I finally quit practicing quitting, and really did it, I was suddenly aware of the odors. I bought a new car, removed the carpet in the house and replaced it with Pergo, removed all the drapes and replaced them with shutters, scrubbed down all the surfaces and repainted everything. It was an awakening for me. I still can't believe I did it for so long, and now I simply can't tolerate the odor. I went into a restaurant last Friday with a couple of friends, and as we walked in, cigarette smoke overwhelmed us. We stood for about a minute, thanked the hostess and left. I had to come home and take an antihistamine because my head got all stopped up from the smoke - just for that short period.