The Mark Airstream CFX is an heat recovery unit equipped with high-efficiency counterflow heat exchanger with bypass. There are 12 types available ranging in air volume from 600 m3/h to 20.000 m3/h for both indoor and outdoor installation. The following configurations are available: A1: Airstream CFX A2: Airstream CFX with after-heater or cooler A3: Airstream CFX with after-heater and cooler A4: Airstream CFX with damper(s) A5: Airstream CFX with damper(s), after-heater or cooler A6: Airstream CFX with damper(s), after-heater and cooler

The Mark Airstream HWX is an heat recovery unit equipped with rotary heat exchanger. There are 9 types available ranging in air volume from 1500 m3/h to 27500 m3/h for both indoor and outdoor installation. The following configurations are available: A1: Airstream HWX A2: Airstream HWX with after-heater or cooler A3: Airstream HWX with after-heater and cooler A4: Airstream HWX with damper(s) A5: Airstream HWX with damper(s), after-heater or cooler A6: Airstream HWX with damper(s), after-heater and cooler A7: Airstream HWX with outdoor- and recirculation damper A8: Airstream HWX with outdoor- and recirculation damper, after-heater or cooler A9: Airstream HWX with outdoor- and recirculation damper, after-heater and cooler