Positive pressure dog respirator

A dog respirator, comprising:

• a positive pressure air supply;
• a downstream air filter positioned downstream of and connected to said positive-pressure air supply;
• a harness which is strapped onto the dog and is for supporting the positive pressure air supply and the air filter;
• a mask adapted for placement over and surrounding the dog's head and adapted to allow the dog to see out of the mask;
• a hose or conduit to direct filtered air from said filter into said mask so that an interior of said mask is maintained at a positive pressure relative to atmospheric pressure with filtered air, wherein said hose or conduit connects to a tube inside the mask that directs filtered air to an area within said mask near the dog's nose and across an interior surface of the mask to prevent fogging from decreasing the dog's visibility;
• and
• an exhaust valve adapted to allow exhaled air to exit the interior of the mask;
• and
• wherein said positive pressure air supply and air filter are configured to be attached to the dog's body and not the dog's head, wherein the positive pressure air supply and filter are removably attached to said harness by hook and loop fasteners, wherein each of the positive pressure air supply and the air filter comprise a first part of the hook and loop fasteners and a top surface of the harness is formed by a corresponding second part of the hook and loop fasteners configured to be removably attached to the first part.