Abstract: Apparatus to condition air comprising a blower to effect a flow of air to be conditioned in a path of travel from a first location to a second location; a cooling member along the path of travel adjacent to the first location adapted to initially cool the air flowing therepast, the cooling means having, in association therewith, pipes for circulating a cooling fluid between the cooling member whereat thermal energy is added to the cooling fluid and a location outside the path of travel whereat thermal energy is removed from the first cooling fluid; a condenser along the path of travel adjacent to the second location adapted to reheat the air flowing therepast; an evaporator within the path of travel between the cooling member means and the condenser adapted to further cool the air flowing therepast; a compressor; piping coupling the evaporator, condenser and compressor for circulating cooling fluid therebetween.