The Vitalograph AIM™ (Aerosol Inhalation Monitor) is designed to assist medical practitioners in training subjects to use their inhaler correctly. Teaching patients correct techniques will result in more accurate drug delivery and ultimately better disease management. The AIM uses a single-use disposable inhaler to provide its feedback on the correct technique including Inspiratory acceleration at the start of inspiration, the timing of the firing of MDI/ Activation of DPI, inspiratory flow rate throughout inspiration, and breath-hold time at the end of inhalation. This is an excellent device to monitor technique over time using a "teach back" method. Reimbursement for CPT code 94664 is between $15-18 so the device pays for itself quickly and ads value to your practice.
See below to for light interpretation.
Still curious about how it works? Check out this short video :)