SCBA can help protect from _____, which can be caused by inhaling heated gases:

Self-Contained Breathing Apparatus (SCBA) is designed to protect firefighters and other emergency responders from inhaling harmful atmospheric contaminants, particularly heated gases that can lead to asphyxiation. When there's a fire, the combustion process generates a variety of toxic gases, including smoke and superheated air, which can displace oxygen in the environment. Inhalation of these gases can lead to a deficiency of oxygen in the lungs, resulting in asphyxiation.

Using SCBA ensures that responders have access to a safe supply of breathable air, thus preventing the likelihood of asphyxiation by allowing them to work effectively in environments where oxygen levels may be dangerously low. The apparatus is specifically constructed to filter out toxic elements, providing a crucial line of defense against fire-related hazards. This capability makes it particularly valuable in ensuring the safety of individuals working in or near environments where heated gases are present, enabling them to carry out their duties without the risk of suffocation from asphyxiating gases.