A spacer chamber having a body with a base end； a tip end； a popoid section located between the base end and the tip end； a first aerosol port located on a first side of the body and near the tip end； a second aerosol port located on a second side of the body and near the tip end, the first side is opposite to the second side. Several therapeutic spray agents are simultaneously applied to a patient by the spacer chamber via the each one of the first aerosol port and the second aerosol port.
