US Patent 8104502 Drain water bacteriostatic structure for air conditioner

A drain water bacteriostatic structure for an air conditioner is provided with a drain pan 8 for holding drain water generated in an air conditioner 1 and an upright antibacterial member 50 which is provided in the drain pan 8. The antibacterial member 50 is provided with an antibacterial agent 50B. The length L3 of the antibacterial member 50 in the up-down direction is set such that the lower end portion 50a of the antibacterial member 50 is immersed in drain water when the drain water is at the minimum water level L1 in the drain pan 8, and the upper end portion 50b of the antibacterial member 50 is exposed above the maximum water level L2 of drain water in the drain pan 8 by a predetermined length H or more.