I know there are lots of different ways to clean atomizers. I share my experience only because it worked. So take it for what it's worth. I vape a DSE 901. The atty had ceased emitting flavor, and vapor was reduced. I soaked it in coca cola for about 10 minutes, swirling it around a few times. Then I boiled it for 5 minutes. I let it air dry for a couple of hours and then dried it further with a hair dryer, because I'm impatient. I primed it with about 5 drops of juice, and attached a full cartridge. Too much juice I think because I flooded the atty. However, once I got the extra juice burned off, the atty performs like new. Great vapor, great taste. So consider this a success story.