Otto combines the process of monitoring, logging and medicating into one seamless experience. How much medicine do I need today? Did I inhale correctly? Is my condition improving? Otto guides users through the process with lights and sounds and lets them know. When the patient exhales through the mouthpiece, Otto starts to work and takes a peak flow measurement. Medicine dosage is adjusted automatically based on the measurement and inhaled in spray-form through the same mouthpiece. The lights work as silent indicators of progress, while the sounds function as confirmation and attention-grabbers; in tandem they are a non-intrusive but reliable process feedback-mechanism and make sure medication is inhaled the right way and in the right amount. Measurements are logged in the background and sent to the patient’s digital journal when Otto is charging, allowing experts to get a deeper understanding of each individual’s condition.