A modular respirator system has interchangeable facial lenses and body seals such as a full facepiece seal or a hood. A method of conversion from a full facepiece respirator to a hood respirator, or vice versa, is also disclosed. In one embodiment, lens conversion is accomplished without changing the...http://www.google.es/patents/US20050103335?utm_source=gb-gplus-sharePatente US20050103335 - Modular respirators and a method of conversion thereof
Modular respirators and a method of conversion thereof
