Induction cooktops have been out for 30+ years, while induction technology has been used in industrial applications for well over a century. There are no recorded cases of any injury (or harm done to a pacemaker user) in all of that time. The American Heart Association lists a number of everyday devices and appliances that should be avoided (including mobile phones). Induction cooktops are not listed among them. The wave is only about an inch deep above the surface of the cooktop, and is "fully captured" by the pan in place. Without a pan in place, the unit only "pings" looking for a pan, but does not fully energize. Even compatible small objects, such as spoons, are "ignored" as a safety measure.