Patent ID: 8113201

Claim:
A respirator comprising a main body adapted to cover the mouth and nose of a user of the respirator; a collapse-resisting means for resisting the collapse of the main body due to respiration of a user during use of such a respirator; and a dual exhalation vent assembly comprising: an inner vent assembly comprising a first inner vent body defining a first inner vent body opening, the first inner vent opening further comprising a first membrane covering the first inner vent body opening; a second inner vent body defining a second inner vent body opening, the second inner vent opening further comprising a second membrane covering the second inner vent body opening; and a strut comprising a first end joined to the first inner vent body, a second end joined to the second inner vent body, and a length spanning between the first end and the second end, the strut forming the collapse-resistant means; and a first outer vent body adapted to attach to the first inner vent body with at least a portion of a main body of a respirator disposed between the first outer vent body and the first inner vent body, and where the first outer vent body defines a first outer vent body opening; and a second outer vent body adapted to attach to the second inner vent body with at least a portion of a main body of a respirator disposed between the second outer vent body and the second inner vent body, and where the second outer vent body defines a second outer vent body opening.