Carrier Enterprise LLC unveiled the Air Knight Generation II air purification solution, which offers improved IAQ and greater HVAC efficiency, as well as easier installation and maintenance. Central to the design of the Air Knight products is the PX5 Quint MetallicMatrix Core, which provides substantial benefits, including a quicker reaction process that forms hydroxyl radicals and a superoxide ion, as well as an enhanced ability to convert nitric oxide into nitrogen and oxygen. Air Knight Generation II also comes with an IC chip design in the power supply, which allows for digital control of the lamp current.