User manual OREGON SCIENTIFIC WS907

[. . . ] Do not use the unit in a room that is larger or smaller than the recommended size. To prevent interference, place the unit at least 2 m away from electrical appliances that use airborne radio waves such as TV, radio and radio-controlled clock. Due to smoking or cooking or after renovation), we strongly advise you to open the windows when you use the unit to enhance the air circulation. [. . . ] Turn the nano filter cover counterclockwise and gently pull the air outlet cover. Silent mode: the appliance operates at very low speed with lowest noise level for bedroom use. ON / OFF button : To turn on / off the air purifying function, press the ON / OFF button . Remove the packaging from the nano filter then push it into the filter cartridge lightly with the arrow on the top of the filter facing the unit. You should hear a "click" sound from the lock if the cartridge is properly placed. Air quality indicator light button : To turn on / off the air quality indicator light, press the air quality indicator light button . The standby light appears on the LCD display and the count down of the air quality sensor warm up timer starts. The air quality level will show on the LCD display: from 1 (best air quality) to 20 (worst air quality). Turn the cover clockwise until you hear a "click" sound and the dots align vertically. The air quality indictor light will turn on after 5 minutes warm up of the air quality sensor. The air quality indicator light will show a corresponding light colour: blue for good air quality, green for fair air quality and amber for poor air quality. The air quality indicator light will change the light colour in gradient accord to the existing air quality. The brightness (high / low) of the air quality indicator light is controlled by the light sensor; the brighter / dimmer the environment, the brighter / dimmer of the air quality indicator light. The standby light appears on the LCD display and the count down of the air quality sensor warm up timer starts. [. . . ] The clean air doesn't come out smoothly from the air outlet The unit produces an unusual noise (e. If you're in the US and would like to contact our Customer Care department directly, please visit: www2. Fresh NCCO Air Sanitizing System (Model: WS907) is in compliance with the essential requirements and other relevant provisions of Directive 1999 / 5 / EC. [. . . ]