Check the listing for details. RPB Safety Nova 3 Blasting Helmet with C40 Climate Control. Color: Green, Condition: New. Listed at 809.00 USD. Nova 3 Sandblasting Hood Respirator ,Cape ,BreathingTube , with C40 Climate Control. Condition is "New". Operators claim that the RPB Nova 3 blast hood is the lightest and most comfortable heavy industry respirator they've worn. Its unique helmet padding distributes weight evenly across your head and shoulders, making it feel lighter and reducing aches and strains on your neck.C40 Climate Control Device The C40 is a robust climate control device, designed to give ultimate comfort in your environment when wearing your respirator. The C40 allows you to maintain your optimum body temperature, no matter the climate conditions around you. With is simple, sleek design, users can cool the incoming air by up to 52℉, alternatively heat by up to 33℉, or any range in between all with the slide of a lever.