Air make-up units (AMU) replace contaminated air exhausted from industrial buildings or spray booths with heated outdoor air. AMUs maintain a constant leaving-air temperature regardless of the incoming, outdoor air temperature. They also replenish equal amounts of fresh air for every cubic foot of air that’s exhausted. Pacific Spray Booths is a trusted distributor of AMU units from top brands like Bananza, Rammstein and Mercury. Have any questions? Call us today at: (877) 620-4607.