Masimo is a global medical technology company that develops, manufactures, and markets a variety of noninvasive patient monitoring technologies, hospital automation solutions, home monitoring devices, ventilation solutions, and consumer products. Masimo is based in Irvine, California. The company's core measurement technologies are pulse oximetry, alongside advanced Pulse CO-Oximetry measurements, brain function monitoring, regional oximetry, acoustic respiration rate monitoring, capnography, nasal high-flow respiratory support therapy, patient position and activity tracking, and neuromodulation technology for the reduction of symptoms associated with opioid withdrawal. Masimo was founded in 1989 by electrical engineer Joe Kiani, who was later joined by fellow engineer Mohamed Diab.