Lennox touts its high-efficiency CBA38MV Air Handler as the quietest on the market. It has a programmable variable-speed blower motor, allowing for consistent control over temperature and humidity levels in individual rooms. Its evaporator coils are made from a corrosion-resistant aluminum alloy, which provides reliable resistance to environmental contaminants, says the company. Pricing is determined by local dealers and varies by the size of the space to heat and cool. lennox.com
