Gases that have no odor can pose what type of risk in confined spaces?

Gases that have no odor can pose a severe health risk in confined spaces because they can accumulate without detection, leading to dangerous situations. For instance, gases like carbon monoxide and methane are odorless, and their presence can lead to asphyxiation or other serious health effects without warning. In a confined space, where ventilation is limited, the concentration of these gases can increase quickly, heightening the danger to individuals who may not be aware that they are being exposed to hazardous conditions. It is crucial for workers in such areas to utilize appropriate monitoring equipment to detect these invisible threats, ensuring safety and preventing potentially life-threatening incidents.