Dai-Dan Co., Ltd. engages in the design, supervision, and construction of electrical, air conditioning, plumbing and sanitary, and firefighting facilities works in Japan. The company offers REMOVIS, a building equipment monitoring and management solution; WIT WET, a vaporization type humidification system; ZEB solutions comprising Enefice Kyushu, Enefice Shikoku, and Enefice Hokkaido, that are buildings with net zero or negative primary energy consumption per year; iRack System, a one-way airflow rack with individual cage ventilation; Air Barrier Booth, a cross contamination prevention system; All-in-one CP unit, a cell culture processing facility; Karatto Operation, an operating room that improves the humidity environment for cell collection and administration, and the comfort of medical staff; and airflow analysis (CFD), a simulation technology that calculates the flow of air with a computer. It also provides Cushion Ducky, an all-in-one hot water supply unit for central hot water supply equipment; Virtual Duct Clean Room System, a ductless air conditioning system; Barrier Smart, a room pressure control technology solution; FlowSmart, an energy-saving technology for reducing the transport power of air conditioning equipment; and Lami Flowrack, a one-way airflow rack for improving the environment inside the breeding rooms and cages. In addition, the company offers air filter regeneration, stratified air conditioning, anticorrosion diagnostic technology, and radiant and floor blowing air conditioning solutions, as well as artificial intelligence for energy-saving. Further it provides air purification/negative pressure units, sputum collection booths, hospital rooms for susceptible infected patients, quick covers, lightweight reinforced ducts, heat storage tanks, energy-saving dehumidification systems for ultra-low dew point rooms, and air conditioning systems for hybrid operating rooms. Dai-Dan Co., Ltd. was founded in 1903 and is headquartered in Osaka, Japan.