Powered & Supplied Air
Powered and supplied air respiratory protection systems are specialised forms of respiratory protective equipment that shield the user from breathing in dangerous particles or gases by using a constant flow of air from an external source. They are made up of a head- and face-covering mask, helmet, or hood, and an air pump or blower driven by batteries that continuously supplies the mask with filtered air.
Through a hose, supplied air systems deliver air to the mask from an external source, such a compressor or a cylinder of compressed air. Before being given to the mask, the air is filtered to eliminate any dangerous gases or particles. On the other hand, powered air systems create and transport the air to the mask using a battery-powered blower. In spite of potentially poor air quality, both devices continuously supply the wearer with pure air.
In hazardous areas where there is a high risk of breathing harmful particles or gases, such as in industrial operations, chemical handling, or hazardous waste management, powered and supplied air systems are often employed. They are also employed in rescue and firefighting operations, where smoky or polluted air may be present.
In addition to making sure that the powered or supplied air system is fitted properly and used in accordance with the manufacturer's instructions and any applicable safety regulations, it is crucial to select the system that is best suited for the particular work environment and task being carried out. To make sure the system is operating correctly and offering the necessary level of security, it should also be frequently inspected and maintained.