ASHRAE's2005 annual meeting, which will be held June 25-29, 2005 in Denver, will present new research focusing on mice and their indoor environment as part of the technical program. Researchers found that increasing supply discharge temperature leads to a reduction in relative humidity, which results in lower ammonia levels in cages housing mice at animal research facilities. If the supply discharge temperature is increased so that a 5.4°F raise in temperature occurs in the cages, the time between changing bedding can be increased by one to two days.