We use various techniques from breath holding, balanced breathing and a few other special techniques for you to learn how to increase your co2 tolerance. This is training and exercise to adapt your body to become more efficient with your breath. It increases the efficiency of how your body uses both oxygen and co2, expands your mindset and knowledge about how you actually use your breath. You will experience new levels of breath holding, this is the class where many reach the 3-4 minute hold mark, and beyond. The effects in life can be profound.