How will the HBOT treatment feel?

The chamber will be filled with compressed air. Once the chamber has expanded to its filled size, it will start to pressur- ize. While the chamber is pressurizing, your ears will feel the change in pressure inside the  chamber.Otherwise it should be unnoticeable. To equalize the pressure and avoid the feeling of fullness in your ears, you will need to clear your ears by chewing (gum or food), swallowing, yawning. During the pressurization of the chamber, your mouth may become dry. Once the chamber is fully pressurized, your salivation will return to normal. Additionally, the chamber may become slightly warm while it is pressurizing. Once it is to full pressure, the relief valves will begin to pull the warmer air out of the chamber. Then you can sleep, meditate, read, watch movie, listen to music, etc.