Hardhat with air conduit

A respirator assembly comprising:

• a hardhat designed to provide impact protection for a user's head, the hardhat having an outer major surface having a geometric shape;
• a hood enveloping the respirator assembly to define a breathable air zone for the user, the hood comprising:
• a face piece that covers at least a face and the head of a user but does not provide impact protection;
• a viewing window made of a light transmissive material;
• and
• an aperture which allows an air inlet to extend outside of the hood and couple to an air supply line;
• wherein an air conduit is detachably coupled to the outer major surface of the hardhat, the air conduit having a shape that follows the geometric shape of at least part of the outer major surface of the hardhat and comprising a conduit wall that defines an air channel in conjunction with a portion of the outer major surface of the hardhat, wherein the air channel is configured to provide air from the air inlet to an air outlet directionally toward the breathable air zone proximate a user's face when the air inlet is coupled to the air supply line, resulting in a positive air pressure environment in the user's breathable air zone.