The i-bodi Technology Sheffield Head is designed to test for the carbon dioxide content of inhalation air for a particle filtering half mask. It can be attached to a digital breathing machine, (such as the i-bodi DBM) and has a copper tube trachea with an insert for measuring breathing resistance. It conforms to the requirements needed for testing the standards BS EN149:2001 + A1:2009.
The overall head size of the i-bodi Sheffield Head is based on anthropometric data and conforms in size to the ISO 16900-5 V02 RPD medium head-form. The under-skull is made from a cast aluminium filled resin, which provides some thermal mass. The front of the face can be supplied as either a silicone or polyurethane elastomer skin to provide a more realistic locus point for the respirators. Both materials are made from a 30 Shore A Hardness to ensure durability.
The headform is mounted on a robust stainless-steel base, which is angled backwards to prevent a build-up of moisture in the mouth tube when testing. In addition to the standard requirements, the ibodi Sheffield Head has a sampling port in the left eye that can be used for testing either humidity or pressure inside the respirator mask.