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Showing posts from December, 2025

Mini Humidifiers

There are pretty little humidifiers for sale everywhere this Christmas.  These widgets are the size of a mug of coffee and may also have pretty LED lights and magical salt crystals.  They look very nice, but may be hard to get to work. The little mcgafter has an ultrasonic transducer at the top, which cavitates the water and turns it into cold steam.  The transducer is kept wet with a long cotton wick.  The wick is supposed to float in a little tube and lightly press against the underside of the transducer, keeping it wet.   However, the wick tends to stick to the tube and not rise up sufficiently to wet the transducer and then there is no steam and no magic released from the crystals, which can all be very disappointing. My simple solution was to drop a little spring from an old ballpoint pen into the bottom of the tube to press the wick up - about half a spring is sufficient.  A little piece of styrofoam placed into the tube to help the wick float ma...