[. . . ] Only) or to speak with a customer service representative; Mon- Fri 8am- 7pm EST. When using an electrical appliance, basic precautions should always be followed, includingthefollowing: READ ALL INSTRUCTIONS BEFORE USING THIS APPLIANCE. [. . . ] (NOTE: Do not use any cleaning solutions, as these may damage the pre-filter. Your Air Purifier is equipped with a feature that automatically advises you when your filters made with HEPA Media needs replacement. Replace the filter with Hoover Part Number: AH60015 and then use a paper clip to press the "Filter Reset" button next to the red light. To replace the filters made with HEPA Media: - Switch off the unit, and unplug it from the AC outlet. - Replace the old filter made with HEPA Media with the new filter made with HEPA media, ensuring that the pre-filter is aligned correctly. As with all bulbs, this will require periodic replacement, depending on frequency of use. To ensure bulb is operational, periodically look at back of product for a blue glow through the grille. Checking in a low light environment or in the dark will aid in seeing the glow. To replace the UV bulb: - Switch off the unit, and unplug it from the AC outlet. - Remove the TiO2 coated screen - Holding the ceramic end of the UV bulb, turn the bulb gently until it releases from the socket. To avoid injury grasp ceramic ends of bulb and do not touch the glass. - Do not place the Air Purifier where people or pets may trip over or walk on the power cord. - Inspect the power cord before use to ensure the cord and plug are in a good condition. If a minor problem occurs, it usually can be solved quite easily when the cause is found by using the checklist below. [. . . ] This Warranty shall be governed and construed under the laws of the state of Ohio. The Warranty Period will not be extended by any replacement or repair performed under this Warranty. [. . . ]