Passivent: Bringing Daylighting and Natural Ventilation Together

  • 9 Mar 2023

As specifiers look to improve the energy efficiency of their projects through the greater use of natural light and effective ventilation strategies, leading product manufacturer Passivent can help streamline the process. This is courtesy of its Litevent Airstract® rooflight ventilation system.

Suitable for installation on flat or low-pitched roofs, Passivent’s Litevent Airstract has been specifically developed to reduce energy demands in commercial buildings. This is done by combining controllable natural ventilation and natural daylighting functions in one unit.


Manufactured from robust aluminium, the unit’s thermally insulated upstand minimises heat loss. Its triple skin polycarbonate glazing is available in a clear, diffused or bronze finish.


By enabling controllable ventilation with minimal energy consumption and reducing reliance on artificial lighting, Passivent’s Litevent Airstract is ideally suited for use across a variety of sectors. It’s good for educational and community buildings, where the need to save on operational carbon emissions and costs is vital. 


 – resistant to driving and deluge rain
 – includes a 4mm insect screen in the cowl
 – available in a range of shapes and sizes, including square and rectangular options.

These options offer greater flexibility in terms of designing daylight and ventilation geometric free areas.

About Passivent

With almost 40 years’ experience, Passivent can offer a range of resources and support to specifiers at early design stage. This helps them to achieve the best possible natural ventilation and daylighting strategy and ultimately creating better buildings and healthy spaces.

To find out more, visit, call 01732 850 770 or email [email protected]. Follow the company on LinkedIn to keep up to date with the latest news.

To read about Passivent strengthening its technical expertise with a new appointment, click here.

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