CO₂ tolerance training involves breathing controlled amounts of carbon dioxide during short practice sessions. This type of breathing practice helps familiarize your body with normal CO₂ fluctuations that occur naturally during breathing. The Cardihaler allows you to adjust CO₂ levels gradually, starting low and progressing based on individual comfort. Sessions typically last 2-5 minutes and are practiced regularly as part of breathing training routines. Results and experiences vary between individuals.
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