I have spoken with a fair few Inspo/Evo divers (particularly newer ones) who said they hadn’t seen the videos that were put out by AP Diving a while back. Each of the four videos (embeded above) cover a different area of AP equipment including CO2 scrubber, mouthpiece, O2 sensors and batteries. Click Next on the player if you want to skip to the next video. The video were produced by AP Diving and remain their copyright, though I though I’d post them here as a reference to others.