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Exhaust air control

Protects against deadly Carbon Monoxide Poisoning!


Danger of Carbon Monoxide poisoning exists during simultaneous operation of a vented fire place and an exhaust fan, as fire place exhausts can come back into the chimney and be pulled into living area.

Marley Air-Supply Guard makes sure, that enough pressurized air flows through an opened window to prevent toxic gases from returning through the chimney.
  • Simultaneous use of fireplace and exhaust fans
  • Radio and cable controlled models available
  • Easy installation
  • From the Ventilation Specialists

Exhaust air control MZ-K



  • mains switching capacity 3.680 W, 16 A
  • size 65 x 135 x 75 mm
  • Sensor technology with 5 m cable guaranteessupply air

Exhaust air radio control MZ-F



  • multiple-sensor technology
  • guarantees supply air
  • secure against unplugging
  • battery check

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