The best WS family yet

If you talk about home as being a feel-good oasis of wellness, most people think of beautiful furniture, modern décor and lots of space. The most important element is often forgotten; healthy room air, free from pollutants, smells and humidity!

The new generation of MAICO ventilation units with heat recovery, the WS 170, WS 320 and WS 470, ensures perfect room air without the need for window ventilation, and a lot more besides. For example, uniquely high energy efficiency, flexibility and ingeniously easy operation through the free-of-charge App/web tool, air@home.


Latest Features:

  • Powder-coated sheet steel housing.
  • Simple filter change is possible without tools
  • Tight, thermal bridge-free internal housing made of temperature-resistant, sound-absorbing and heat-insulating EPP material (average wall thickness 47 mm
  • G4 filter (ISO Coarse 85%) in the exhaust air and F7 pollen filter (ePM1 80%) in the outside air.
  • Optional filter cascade (G4/F7) in the outside air is possible to increase the filter service life.
  • Smart-Home ready (e.g. Loxone via Modbus TCP/IP).



Thanks to the continuous, optimum level of ventilation, the fabric of the building is effectively protected against mould and the expensive renovation work that it can lead to. The ideal room air also minimises the risk of adverse effects on health, such as asthma, allergies, headaches and much more.

UNIQUE EFFICIENCY CLASS A+! Thanks to the construction that has been designed down to the smallest detail and to the energy-efficient EC motors, the new ventilation units are extremely energy- and cost-saving in operation. The WS 320 is the only unit in its class to hold the A+ energy efficiency class label! It doesn’t get any better than that!

EFFICIENT: UP TO 95% HEAT RECOVERY! The highly efficient cross counterflow heat exchanger ensures that the energy in the exhaust air can be reused and transferred to the fresh supply air. In addition, the fact that it is equipped with an enthalpy heat exchanger makes it possible to transfer humidity to the supply air, which is an advantage in winter, when otherwise the room air is dry

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A healthy life is inextricably linked to what we breathe. Air is the first and most important nourishment for all life forms. On average, a person breathes more than 12,000 litres of air per day.

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