Headworn defogger

A defogger kit for use with eye-wear, the eye-wear having a viewing surface and structure for securing the eye-wear to a head of a user, the defogger kit comprising:

• a housing mountable adjacent to the user's head independent from the eye-wear, the housing having an opening;
• an air pump mounted in the housing, the air pump having a fan and a control circuit to selectively operate the fan, and the air pump having an outlet aligned with the opening of the housing;
• a first manifold for releasably mounting to the housing at the opening of the housing, the first manifold including first and second outlets and an inlet in communication with the outlet of the air pump through the opening of the housing when mounted to the housing for receiving air from the air pump and for separating and outputting the air flow from the two outlets of the manifold into two separate air flows, and the first and second outlets in a first configuration for coupling to first and second tubes for directing the separate air flows therefrom to the inside of the viewing surface of the eye-wear;
• and
• a second manifold for releasably mounting to the housing at the opening of the housing when the first manifold is removed from the housing, the second manifold including first and second outlets and an inlet in communication with the outlet of the air pump through the opening of the housing when mounted to the housing for receiving air from the air pump and for separating and outputting the air flow from the two outlets of the manifold into two separate air flows, and the second manifold having first and second outlets in a second configuration different than the first configuration for coupling to first and second tubes for directing the separate air flows therefrom to the viewing surface of the eye-wear.