Patent ID: 8104502

Claim:
A drain water bacteriostatic structure for an air conditioner, comprising: a drain pan for holding drain water generated in an air conditioner; and an upright antibacterial member which is provided in the drain pan, wherein said antibacterial member has an antibacterial agent and the length L 3 of said antibacterial member in the up-down direction is set such that a lower end portion of the antibacterial member is immersed in drain water when drain water is at the minimum water level L 1 in the drain pan, and an upper end portion of the antibacterial member is exposed above the maximum water level L 2 of drain water in the drain pan by a predetermined length H or more, wherein the antibacterial member is held in such a manner that it can slide down from above, said antibacterial member is formed of a mixture of a holding material having water solubility and an antibacterial agent having water solubility in granular form or pellet form, and when the antibacterial agent, which is submerged in drain water in a lower end portion of the antibacterial member, is eluted in the drain water and reduced, the antibacterial agent, which is located above the actual water level of the drain water and not eluted, moves down from above in response so as to be supplied in sequence.