I very very rarely clean my atty's, I use one all the time, just used one for 3 weeks without cleaning, rinsed it under warm water this morning for about a minute, dried it and put about 3 or 4 drops on the bride and vaped away... I noticed when I held the button I couldn't see the heating coil turn red, I rinsed it and dried it held the button and I could see it turn red, since then I've been getting more vapor and better throat hits.