I have bought a humidifier yesterday (brand : turbo from italy : both hot and cool air). I bought it from Kowloon Bay - Teleford plaza at Chung Yuen.... the price is HKD490.00 (special discount).
i bought a hot/cold humidifer from GOME today, brand is TURBO, cost $550, this one is quite good. i also saw BIONAIRE, but this one the water may spill out very easily, be careful if use this one.