Abstract: Disclosed is a cooling device, wherein air from a heating or cooling unit stored in a unit is blown by a fan into an extendable tube and through a delivery tube to deliver heated or cooled air. The delivery tube can be run to provide cool air.

Abstract: Air from a heating or cooling unit stored in a backpack is blown by a fan into an extendable tube and through a delivery tube to deliver heated or cooled air to wearer. The delivery tube can be run into a hat, helmet, or cap to heat or cool the head of the wearer. Alternatively, the delivery tube can bifurcate to create a yoke from which two perforated delivery tubes extend that run over the shoulders of the wearer beneath their clothes to deliver heated or cooled air. The extendable tube allows the wearer to move freely, turning their head side to side or nodding up and down.

Abstract: Apparatus 10 disclosed an improved welders helmet having a replaceable lens 16 thereon incorporating an electrically driven fan 14 which receives filtered air through a plurality of air ducts 24 having a filter 22 thereon. A receptacle 20 for containing a battery is disposed on the helmet along with photovoltaic elements 32 for recharging the batteries from the flash of the weld. Lights 30 are also disposed on the helmet as well as communication means.