Many companies in the aircraft industry will utilize altitude chambers to train pilots and personnel. Recently some companies have been upgrading their systems to include reduced oxygen conditions. At 25,000 feet humans will experience a condition called hypoxia. Hypoxiation occurs when the body, or a section of the body, is oxygen deprived.
This sickness can lead to far worse complications such as high altitude pulmonary edema and high altitude cerebral edema. The advantage of an altitude chamber is the trainees can experience the simulated effects of hypoxia but do not have to be exposed for prolonged time frames if an issue arises.
Another purpose of the upgrade is to reach the desired goals of familiarizing personnel with hypoxia but without pressure manipulation and rather with gas management.
The chamber also allows for a greater level of flexibility in the training sessions because protective equipment is not a necessity. These chambers are great for individuals that do not require full training courses and only need refreshers. Those individuals will save money because they will not have to actually reach those altitude conditions.
Overall altitude chambers save everyone money in the long run. Although a majority of altitude chambers are very expensive a variety of organizations will allow the public to utilize the chambers through appointments. It is also a growing trend among athletes to use altitude chambers to adjust his or her body to the conditions of the place he or she will be competing.
Altitude Chamber Informational Video