The IWELD PANTHER FLOW fresh air welding head shield has a high capacity Li-ion battery. The air supply is adjustable in 3 stages. The light weight of the head shield makes it comfortable to wear, even for long periods of time. It features an ergonomic waist belt combined with a shoulder strap for more comfortable working. The LCD control panel is backlit. True Color technology provides the user with excellent optical properties and near-realistic colour fidelity. Its True Color LCD filter cartridge is rated 1/1/1/1. It has a TH2 P R SL protection level and vibration combined with audible alarms to prevent accidents.