| 摘要 |
<p>Dual functional dispensers, wherein the dispensers comprise dispensing units independently capable of dispensing actively and passively, i.e. in response to an action on the part of the user. The passive dispenser may comprise a clip-on collar, a container of gel, a mat impregnated wit h the dispersible material, or a porous body. The active dispenser may be operated by action of a pump, bladder or bellows and achieve a "burst" of vapour. Alternatively, it can be a spray can. The passively dispersible material may be selected from the group consisting of fragrances, air fresheners, deodorizers, odour eliminators, malodour counteractants, insecticides, insect repellents, medicinal substances, disinfectants, sanitizers, mood enhancers, and aromatherapy compositions. The actively dispersed material may be the same or different. Refill units for such dispensers may comprise a spray can and associated control means, and an evaporative dispenser of dispersible material, provided either separately or as an integral unit.
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