This medical / hospital equipment was used in the Tawonga District General Hospital which was built in the 1950s specifically for the increase in population due to the Kiewa Hydro Scheme.Historical: Shows the development of scientific hospital equipment. Provenance: used in the Tawonga District General Hospital which was remote and therefore required good equipment.3 parts. 1. Flexible plastic mask for nose and mouth with a hole either side for the nose to breathe. Another hole for air to enter from a tube below to the mouth or nose. Blue material tape is attached each side to go around the head. 2. Hard clear plastic that fits into tube hole of mask. It protects a narrow tube that fits onto 3. a long soft green plastic hollow tube with fittings at each end. medical equipment. hospital equipment. tawonga. mt beauty. oxygen mask