Aprilaire
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Aprilaire is the brand under which Research Products Corporation markets indoor air quality appliances and the two names are now largely synonymous. Research Proucts is based in Madison, Wisconsin, United States and manufactures humidifiers, air cleaners and zone control HVAC systems. The first Aprilaire branded product was a humidifier introduced in 1954; this was the first evaporative, flow-through design humidifier to be marketed in the United States.
