gvs rpb c40 climate control deviceWith the GVS RPB C40 climate control device, you can better control the temperature inside your blasting helmet in both warm and cold working conditions. The regulator is worn on the hip and controls both the airflow and the temperature of the breathing air supplied to the helmet. Using the slide control, the user can cool or warm the incoming breathing air, allowing the climate inside the helmet to be better adjusted to the working conditions. The