Airlite natural louvred ventilator


Airlite is a high performance natural louvred ventilator. It is dual purpose, giving highly efficient natural ventilation as well as smoke control ventilation. It is suited either for extraction or as an inlet, as well as the entry of natural daylight for most kinds of industrial and commercial buildings. It can be fitted into most types of walls and roofs. Double weather seals ensure that air leakage and heat losses are greatly reduced when it is closed. It is tested to and in compliance with EN 12101-2 and is CE marked. It is made from tough, corrosion resistant aluminium alloy and is manufactured under the ISO 9001 quality and ISO 14001 environmental management standards.


  • Certified performance.
  • Durable.
  • Energy efficient.
  • High aerodynamic and acoustic performance.
  • Wide range of applications.

General information


Certified performance


Energy efficient

High aerodynamic and acoustic performance

Wide range of applications

Uniclass 2015

Pr_70_65_04_56 Natural smoke and heat exhaust ventilatorsPrimary


H11/140 Louvres

L10/650 Metal louvres

Specification data - Natural smoke and heat exhaust ventilators

Product Reference

Airlite natural louvred ventilator



Throat width

500–2000 mm in 1 mm increments.

Throat length

1200–3000 mm in length in 300 mm increments.

Fixing type


Aluminium base profile to suit


Curtain walling



Frame finish

Mill aluminium


Polyester powder coating, RAL

Insert colour requirement.


Double skin insulated aluminium


16 mm clear seven layer multiwall (light transmitting) polycarbonate

16 mm grey seven layer multiwall (non-light transmitting) polycarbonate

16 mm opaque seven layer multiwall (light transmitting) polycarbonate


24 V DC

Pneumatic, double locking

Pneumatic, failsafe closed

Pneumatic, failsafe open


Not required




Wind baffles

Not required


Standard product features


Manufactured from corrosion resistant aluminium alloy grade 3005 in accordance with EN 573-3, with stainless steel fixings.


Double seals are used to reduce air leakage when closed.

Its performance varies with size and options selected:

  • Aerodynamic coefficient (Cv): Up to 0.67.
  • Reliability: RE 1000 (10,000 cycles).
  • Wind load: Up to 12,500 N/m².
  • Snow load: Up to 4,500 N/m².
  • Resistance to heat: B 300.
  • Low ambient temperature class: T(-25).
  • Materials resistance to fire: E (to EN 13501-1).
  • U value: 1.4–2.8 W/m²K.
  • Air permeability (medium size unit): 17.1 m³/m²/hr at 50 Pa.
  • Sound insulation: 20 dB R’w.

Product Options

Wind baffles:

Wind baffles help the ventilator to be aerodynamically efficient. In the case of Airlite these comprise a movable element which disappears when the ventilator is closed.


Third party certifications

  • TÜV Rheinland: CE Mark / compliance with EN 12101-2. : Declaration of Performance according to EU-CPR-305/2011 referencing EC Certificate of Conformity No. 336-CPD-9377
  • SGS: SK11/1243 - Manufactured to ISO 9001:2008. : Manufactured under the ISO 9001 quality standard
  • SGS: SK14/2096 - Manufactured to ISO 14001:2004. : Manufactured under the ISO 14001 quality standard

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