The model 115 uses a dual‐blower air system. Over time, these blowers will fail and require replacement. Even though the blowers are the same age, they will fail at different times. When the first
blower fails, the second blower continues to operate and produce some fluidization. However, the air pressure is reduced by much of the air escaping through the malfunctioning blower, resulting in reduced fluidization. The clinician will hear the blower and assume the Fluidotherapy unit is functioning normally, but increasing blower speed does not increase fluidization. Because the still‐functioning blower will also fail soon, Kowalski Calibration replaces blowers in pairs.