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Fresh wall ventilators

The Glidevale range of Fresh Wall Ventilators have been specifically designed to allow a controlled ventilation route into and out of buildings in order to control the formation of harmful condensation..

They use no energy to operate and have acoustic attenuation options for noisy locations.

Suitable for new build work but particularly suitable for refurbishment applications when other ventilation solutions are not possible..

Features & benefits

  • A range of ventilation rates available.
  • Humidity sensitive options available.
  • Suitable for use in wall depths up to 360mm.
  • Extension tubes available for thicker walls.
  • Acoustic options with enhanced sound reduction up to 50dB
  • White internal finish as standard.
  • Fast retrofit design only requiring a core drill of correct diameter.
  • All internal components can be dismantled to be periodically cleaned.
  • Fresh 99H humidity-sensitive vent offers 25% improvement in ventilation equivalent area.
  • Fresh 99H humidity-sensitive acoustic vent offers 17% improvement in ventilation equivalent area. 



Range Brochure


Product Brochure


Fixing instruction


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Have a question?

For any questions or queries about our product ranges and the technical support services we can offer, please contact us using the form below.

Glidevale Protect is a division of Building Product Design Ltd.

Other subsidiaries include ventilation systems specialist Passivent and Kingfisher Louvres, manufacturer of aluminium louvres systems.

Important Notice

Please be vigilant of fraud/cyber crime. If you receive an email from our parent company Building Product Design Ltd, please check that the email address from the sender ends in '' and any phone number given is 0161 905 5700.

If you receive any emails ending in '' or '', these are NOT legitimate, and you should contact us as soon as possible at

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