An air freshener with both wick and spray receiving refill cartridges

摘要

An apparatus 1 for introducing a suspension of an active material into the surrounding air includes a sealed reservoir 11 containing the active material 12 with both a wick 9 and a tube 8 extending into it. The apparatus also has an air pump 2 and a nozzle 14 joined by a conduit 5, the tube extending into the refill 10 is connected 7 to a constriction 6 in the conduit near the nozzle. The tube may be housed within the wick. Ideally the liquid is taken up from the refill through the tube due to a Venturi type pressure drop at the constriction, preferably upstream of an expansion chamber. The refill is engaged with the conduit by moving it up or moving a connector 7 down or both. This can be done manually or by a motorised mechanism engaging the refills base or upper portion. The connector and tube may have tapering tips to ease engagement. The tube may terminate at the refills seal 25 and can be rigid. The pump may be battery 3 powered and actuated by a controller.