• Aldes humidity-controlled extract grilles adapt the airflow to requirements:
  • When the living room is occupied, the sensor braid in the grille senses the moisture in the ambient air and opens the grille to the appropriate level accordingly

    When the room is empty, the air humidity level drops again and the grille closes to deliver the base airflow, thereby limiting the exhaust airflow and reduce the need for heating.

Discover the range

Range of humidity-controlled terminals
    DESCRIPTION
  • Humidity-controlled extract terminals offer a base airflow adjusted according to the moisture level in the room or a constant base airflow. It is also possible to activate boost airflow on demand. The pressure range for humidity-controlled terminals is from 70 to 160 Pa.
  • Hygro B: humidity-controlled extract terminals and air inlets.

    Hygro A: humidity-controlled extract terminals and self-balanced or fixed air inlets.


  • Different models:
  • Bahia Curve L for airflow levels > 50 m³/h (kitchen). Boost airflow for 30 min.

    Bahia Curve S for airflow levels < 50 m³/h (bathroom/WC). Boost airflow for 20 min.

    Bahia Curve Non-residential S and L.

  • Pressure range: 80-160 Pa.

  • Type of control:
  • PRESENCE timer-controlled airflow: actuated automatically after 25 seconds according to occupancy detection (battery or mains-powered)

    PUSH: actuated by a push button for a timer-controlled airflow (battery or mains-powered) or using an ON/OFF switch for non-timed airflow (main power supply). 

    CORD timer-controlled: activated by pulling the cord (no electrical power supply)


  • Type of power supply: 
  • Battery not supplied: Type 6 LR61 9V battery

    When batteries reach the end of their life, the grilles emit 5 beeps every time boost airflow is requested. The kitchen grille remains on base airflow and bathroom/WC grilles at boost setting until the battery is changed.

    230V: accessory for interface between 9V DC and 230V AC accessory to be ordered separately

    12V: CAL accessory 12V AC - 8V DC to be ordered separately

  • Humidity-controlled Mechanical Exhaust Ventilation (MEV)
  • Multi-occupancy residential and Non-residential,
  • New builds and refurbishment.
  • Unique no-grille design conserves the aesthetic character of the terminal even if it is clogged,
  • Good air tightness and easy to clean,
  • No grille to make maintenance easier.
    AIR MANAGEMENT REQUIREMENTS
  • These optimised systems are not covered in article 4 of the decision of 4 March 1982 amended by the decision of 28 October 1983. They are authorised thanks to Technical Approvals specific to these systems and certain brands.
  • Aldes holds a Technical Approval for its individual housing and multi-occupancy housing systems No. 14.5/17-2267.
  • The grilles must be installed in accordance with the air handling sizing tables.

    HYGRO B, INDIVIDUAL HOUSE
  • Dwellings equipped with electrical heating systems, gas (room-sealed boiler) or other independent CMEV system, except for ducted air conditioning.

  • HYGRO A, INDIVIDUAL HOUSE
  • Dwellings equipped with electrical, gas (room-sealed boiler) or other independent CMEV system.

  • HYGRO B, MULTI-OCCUPANCY HOUSING SOLUTION
  • Dwellings equipped with electrical heating systems, gas (room-sealed boiler) or other independent CMEV system, except for ducted air conditioning.

  • HYGRO A, MULTI-OCCUPANCY HOUSING SOLUTION
  • Dwellings equipped with electrical heating system, ducted air conditioning or gas heating system (except gas CMEV).

  • HYGRO GAS, HYGRO A MULTI-OCCUPANCY HOUSING SOLUTION
  • Humidity-controlled CMEV with boiler connected to CMEV in kitchen.
    The terminals are installed in wet rooms (kitchen, bath/shower).
  • Versions with Ø 125 mm shaft (Roll-In seal):
  • Slots into sleeves, RT Flex, rigid ducts,

    The Roll-in seal provides an airtight seal and the interface with the wall.

  • Versions with Ø 80 mm shaft:
  • Slots into sleeves, rigid ducts.

  • Shaftless versions:
  • Clipped onto a Ø 125 mm shaft (Roll-In seal), Ø 116 mm shaft (Roll-In seal), or Ø 100 mm shaft (foam seal).

    Screwed attachment directly onto the wall.

    Clipped onto the retrofit plate.