Abstract: The helmet moisture control system prevents or greatly reduces moisture accumulation in the volume between the face of a helmet wearer and the transparent face shield when wearing a closed face helmet. The system includes a mouth guard having a breathing passage therethrough connected to a central body having separate inhalation and exhalation tubes extending therefrom. A flapper valve in the central body closes the exhalation tube when the wearer inhales, and closes the inhalation tube when the wearer exhales. Exhaled air and accompanying moisture are prevented from entering the volume between the helmet wearer's face and the helmet face shield so long as the wearer breathes orally, thereby greatly assisting in preventing fogging of the interior of the face shield. A moisture condensation trap and drain are provided at the lower portion of the central body. A filter may be provided at the inlet end of the inhalation tube.

Abstract: The cabinet ventilation system is mounted on top of a cabinet for providing ventilation throughout the entire cabinet by drawing heated air up and out of the interior. The ventilation system is designed with a ventilation hole in the system base that aligns with the cabinet's vent. The ventilation system has two fans mounted on a support tray in the base, covering this hole. When the fans are turned on, the fans force air to flow out through the cabinet's vent and out the ventilation hole, thus, circulating ambient air throughout the interior of the cabinet. A fan controller in electrical communication with the fans is used for selectively actuating the fans.