What Are Masks With Air Supply?
Masks with air supply are respiratory protective devices that ensure safe breathing for workers. They function by supplying a constant volume of air from an air supply unit, which can be a fixed filter canister type, portable filter canister type, or electric blower type.
These masks are used in applications like painting, welding, and dust-related tasks, and are especially effective when oxygen concentration is above 14% and toxic gases are present at low levels. Different air supply units have distinct mechanisms: fixed filter canister units integrate the filter canister and air supply, portable units separate them, and electric blowers use an electric motor. Their key features include facilitating easy breathing with a constant air supply, suitability for confined spaces, and extended-duration tasks. Monitoring the air consumption of the air supply unit during use is crucial.