Which type of hazard includes gases that can lead to suffocation?

Asphyxiants are gases or vapors that can displace oxygen in the air, leading to a potentially life-threatening situation, such as suffocation. These substances may not be toxic in small amounts, but their presence in a confined space can reduce the available oxygen to dangerously low levels. Common examples of asphyxiants include nitrogen, carbon dioxide, and various inert gases.

Understanding this type of hazard is crucial for first responders and firefighters, as they must recognize situations where asphyxiants may be present, especially in enclosed or poorly ventilated areas. Proper training and safety measures are essential to minimize the risk of exposure and ensure the safety of both responders and victims.