Breathe easier with the assistance of the Philips Humidifier Series 2000. The NanoCloud evaporative technology spreads 99% less bacteria* vs. leading ultrasonic humidifiers and prevents wet spots and white dust.** The NanoCloud technology uses a natural evaporation process, which draws in dry air, adds water molecules to the air, and emits humidified air into the room. Once the water is evaporated, the water mist becomes invisible and the smaller molecules are less able to carry bacteria into the air. Better air starts with the Philips Humidifier Series 2000.