| 摘要 |
PURPOSE: A battery powered volatile dispenser is provided to dispense volatile materials for an economical, simple, visually obvious cue for volatile supply use-up, combined with detection of and a visual cue for battery levels inadequate to run a fan at a speed or with a power sufficient to dispense a desired amount of volatile. CONSTITUTION: The battery powered volatile dispenser for dispensing a volatile material comprises a housing(12) having an air inlet, an air outlet, an airflow path therebetween, and a holder for a volatile reservoir for supplying a volatile to be introduced into air flowing in the airflow path. The volatile dispenser has a fan(20) adapted to be powered by a battery, the fan being so located that it propels air through the airflow path and also is unrestrictedly visible to a user of the volatile dispenser. The volatile dispenser also has an electrical power cut-off that activates to cut off power to the fan when the battery voltage drops beneath a selected level greater than zero to provide a prominent visual cue of battery depletion. A method of providing a prominent visual cue of battery or volatile depletion by use of the volatile dispenser is also provided.
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