This comes under the heading of "To whom it may concern": If you happen to be one of us who is reliant on a suction machine to keep your mouth and throat operable [as my husband is] - here is something that might interest you. You can buy a "gizsmo" called a power INVERTER to use in your car to make the suction machine work while traveling. It converts 12 volt DC vehicle power to 110v AC household power. Thus the machine can go on trips. All you need to know is the watts and amps of your suction machine. [we bought a 750 watt-up to 7.o amps converter] It is sold by Vector Manufactoring, Ft. Lauderdale, Fl. We plan to use it on the 13 hr. drive to Minnesota :rolleyes: Amy