AIR CONVERTER OF CLEANER AND ATTACHMENT THEREOF

PROBLEM TO BE SOLVED: To provide an air converter for converting the air sucked to feed air in a household electric cleaner to wash the interior of the circulating pipe of the balance boiler of a bathtub, and a bathtub washing instrument. SOLUTION: Propeller type fans are respectively provided in two chambers of an egg-shaped case divided into two chambers and the rotatory power of one fan rotated by the suction force of the cleaner is transmitted to the other fan through a bevel gear and a shaft to rotate the fan to obtain air feed force. The mutual fans are reversely rotated by the action of the bevel gears arranged to two chambers and, even if either one of insertion ports at two places is inserted in the air hose of the cleaner, the single chamber obtains air feed force. The air hose and the insertion part provided to the leading end of the air hose are inserted in the circulating pipe of the balance boiler by utilizing air feed force to wash the circulating pipe by the synergistic effect of ejected air force, water and bubbles.