A conventional radial electric warmer includes an upper and a lower support base, plural heaters, a protective net, and an upper, a front and a rear cover. An instant message that includes a request for a user to currently participate in an event is received at an instant messaging client. As a result, in the control apparatus for a hybrid vehicle, over-charge and over-electric discharge of the battery is prevented. If the output signal is different than the reference value or outside the range of values, the air mask is vibrated by a vibrating motor to alert the user to a potentially hypoxic condition.