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Basically the title. I have commercial automatic sprayers tastefully hung, but I’m not happy with them. The cans of air freshener don’t have lasting scent and turning them up to max kills the cans and 2xC batteries quickly. I do find them useful for killing mosquitoes in the garage when I put the insecticide cans ….but I digress. This is about air freshener.

These no-shake febreze air fresheners smell good and the scent lasts for a while. It’s probably full of goy-poison, but let’s ignore that for a minute.

How could I put something small and battery-powered on this to pull the trigger at like a 20 minute time interval?

Basically the title. I have commercial automatic sprayers tastefully hung, but I’m not happy with them. The cans of air freshener don’t have lasting scent and turning them up to max kills the cans and 2xC batteries quickly. I do find them useful for killing mosquitoes in the garage when I put the insecticide cans ….but I digress. This is about air freshener. These no-shake febreze air fresheners smell good and the scent lasts for a while. It’s probably full of goy-poison, but let’s ignore that for a minute. How could I put something small and battery-powered on this to pull the trigger at like a 20 minute time interval?

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Wife had to wear a contraption about half the size of a pack of cigarettes that would inject a medication at a certain rate over a span of hours. I disassembled when it was completed. Neat contraption. A hypodermic syringe inside of a rotating tubular sleeve. Rotation squeezed the plunger by means of an internal screw-like bore. The sleeve had angled gear teeth around the perimeter of the base engaged by a piece of muscle wire. Periodic contract/relax cycles ratcheted the sleeve into a slow rotation. Interesting design.