The new hyperbaric chamber for Virginia Mason will be the busiest in the United States. It will also be the second largest. The chamber, which can accommodate up to 16 patients at once, can be pressurized to simulate conditions of up to 150 feet below sea level to treat illnesses such as decompression sickness, carbon monoxide poisoning, and the adverse affects of radiation. The hyperbaric chamber is 46 feet long and about the size of a Boeing 737 at its core. PROJECT STATISTICS Contract: $1,095,905 Area: 92,240 Square Feet Systems: The hyperbaric chamber is pressurized by eight chilled water air compressors. The compressors feed two 3,800 gallon and 1,100 gallon storage tanks that feed into the chamber. The chamber is heated/cooled using fan coils that are attached to the chamber. The chamber piping consists of medical gas, chamber exhaust, fire protection potable water, control air and drain piping. Special Notes: MacDonald-Miller Facility Solutions was also the mechanical engineer and contractor for the tenant improvement build-out of this space.