Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean a humidifier filter [title] Unplug your humidifier. [step] Before you disassemble your humidifier unit, make sure it's turned off and disconnected from the wall outlet. You're going to be handling a lot of wet parts, so this will help you prevent any accidents or damage.

Ending1: [substeps] In warm, dry environments, the temperature should never exceed 103 ° f (16 ° c). If it is warmer than this, try the open air humidifier. Ending2: [title] Choose a humidifier meant for use on bedroom and living room walls. [step] Some humidifiers come with built-in, no-calve-type, filters. Ending3: [substeps] Choose a flat, water-resistant surface as your work area. A countertop near the sink is optimal. Ending4: To remove the humidifier from the outlet, reach into the chamber and locate the face of the handle. Without removing the handle, disconnect the unit from the wall outlet.

Answer format: ending1/ending2/ending3/ending4