Clean room helmet system

Claim 1

A clean room helmet system comprising: a helmet having a support member adjustably sized and shaped to fit the head of the user and including an upper horizontal section and a lower horizontal section as an integral part of said helmet; a hook and pile engaging and holding means located on the external portion of said upper horizontal section and on the external portion of said lower horizontal section; a curved face shield having an upper peripheral portion conformable generally to the curved upper horizontal section on said helmet and a lower peripheral portion conformable generally to the curved lower horizontal section on said helmet and adapted to protect the face of the user from splashed fluids; a hook and pile engaging and holding means located on the internal upper peripheral portion of said curved face shield and on the internal lower peripheral portion of said face shield for engaging in a mating and holding relationship with said hook and pile engaging and holding means located on said upper and lower horizontal sections of said helmet respectively; at least one flapper valve located on said curved face shield for allowing air to enter and at the same time preventing air from being exhausted to the outside atmosphere from said helmet; said helmet having at least one exhaust port communicating with the interior of said helmet; motor means including an electric fan/motor and wearable power means for energizing said electric fan/motor; filter means for trapping particulate in the air and exhausting particulate free air; and conduit means coupled with said exhaust port on said helmet, said filter means and said motor means to establish a filtering air path for discharging particulate free air from said helmet to the outside atmosphere.