Opposite: When someone’s inverted in the training device known as a “chair,” the above-water visual humorously resembles feet sticking out of an upside-down Flintstones cartoon car. Under the surface, however, the serious action is taking place.
Above: Members of the Huntington Beach (California) Police Department (HBPD) practice using an emergency breathing device.
Right: Once acquainted with the breathing device, the HBPD offi cers practice using it not just underwater but also inverted, surfacing afterward for a critique of their performance.
