What Four hazards of confined spaces?

Confined spaces pose several hazards, including oxygen deficiency, where the level of breathable air is low; toxic atmospheres, which can contain harmful gases or vapors; and flammable atmospheres, which may lead to explosions or fires. Physical hazards, such as engulfment from materials or machinery, can also pose significant risks. Additionally, the confined nature of these spaces can limit rescue efforts in emergencies, increasing the overall danger to workers.