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Cake day: June 28th, 2025

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  • We have an old central air system that includes an electrostatic filter. So the air gets sucked thru a plastic grid filter, then thru several vertical wires at high voltage, then it passes thru several wide metal ground plates and finally thru the air-conditioning system. Every 3 months or so I check it and remove a thick layer of dust like you would on a dryer machine filter. The unit is old and antiquated but seems to do the job.