I have an oxygen analyser fitted to the hypoxicator, however there is no noticeable change in its reading even if I fully extend the receiver cage. What is wrong?
Most likely your AltiPower is assembled incorrectly and you are simply breathing ambient air. Check whether the breathing bag is installed correctly and all other parts are in place. Refer to Getting Started and Assembly sections of the user manual / guide. Use a pulse oximeter to verify your blood oxygen saturation levels during training. A pulse oximeter may be useful in indicating your blood oxygen saturation levels during training.