What are the risks of using contaminated breathing gas?

Using contaminated breathing gas poses significant risks to divers, primarily affecting their respiratory system and neurological functions. Contaminated gas can include harmful substances such as carbon monoxide, carbon dioxide, or other toxins that may be present in the gas mix. Inhalation of these contaminants can lead to respiratory issues, which may manifest as difficulty breathing, coughing, or increased respiratory rate, ultimately impairing a diver’s ability to stay underwater safely.

Furthermore, exposure to contaminated gas can lead to unconsciousness, particularly when high levels of harmful gases displace oxygen within the lungs. This can rapidly progress to a state of incapacity, making it extremely dangerous for divers, especially if they are at significant depths. Consequently, the risks associated with using contaminated breathing gas are predominantly linked to potential respiratory failure and loss of consciousness, emphasizing the importance of ensuring the purity of breathing gases used in diving operations.