This POWERbreathe Instructional Video will help you to keep your POWERbreathe mechanical model (Classic and Plus series) in tip-top condition.

The principles are the same for the K-Series except you must NOT submerge the entire K-Series model into water, as it is an electronic device. The only part that needs cleaning on your K-Series is the removable valve head and mouthpiece which is subjected to saliva.

https://www.youtube.com/watch?v=UbkdfnBDsVw&feature=youtu.be&list=PLzyPZzpeIsqhKGcvA7K83WvP9SFsBIXRW