Apologies for yet another cleaner method. This worked so well for me I had to share it. I had an atomizer that was so hard to draw it was basically ‘dead’. Steaming, cola, denture cleaner and others had zero effect. I noticed Brew Rite automatic coffee pot cleaner in Wal-Mart. Under 6 dollars for 8 ozs. I used about 1/10th of a teaspoon in hot water. After sitting and the occasional shake for 15 hrs. it was rinsed VERY thoroughly, blown out and dried . I took a couple of dry hits and a few more with glycerin without inhaling just in case. The draw was as good as new. I used that atomizer for a few more weeks until it wouldn’t draw. Repeated the process and had the same results. I’ve found my Nirvana as far as cleaning goes. The atomizer is a 901. Don’t have a clue if this will work on others but it might be worth a try.