Manual opening vent

Planning Gateway One - Glossary, published on the Planning Portal, defines a manual opening vent (MOV) -as: ‘A vent provided for smoke control in common parts which is operated manually rather than activated by smoke detectors.’

This is as opposed to an automatic opening vent (AOV) which which opens automatically when smoke is detected by smoke detectors.

[edit] Related articles on Designing Buildings

• Accessibility.
• ACM cladding.
• Automatic opening vent.
• Building Safety Act.
• Fire.
• Fire and rescue service.
• Fire resistance.
• Fire Safety Act.
• Gateway.