Decentralised Mechanical Extract Ventilation (DMEV)

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Continuously extracts stale, moisture-laden air from wet rooms such as kitchens and bathrooms, enhancing indoor air quality. This system helps reduce condensation at the source, limiting the risk of mould growth and improving overall comfort by alleviating stuffiness and humidity in these areas. It effectively removes humidity, odours, and airborne pollutants, providing consistent background ventilation rather than intermittent extraction. Designed to work alongside trickle or passive vents, it maintains a steady airflow throughout the property. With low energy operation and minimal running costs, it offers a simple and cost-effective upgrade compared to traditional whole house ventilation systems. Additionally, it is suitable for retrofit installations with minimal disruption and helps protect building fabric by reducing excess moisture in high-risk areas.

Existing properties experiencing ongoing condensation and mould issues often struggle with indoor air quality due to limited natural ventilation or poor airflow. This is particularly true for older properties where installing full ducted ventilation systems is not practical. In flats and apartments, decentralised extraction is often more suitable than whole house systems to improve indoor air quality. Additionally, properties with ineffective or outdated intermittent extractor fans can benefit from modern ventilation systems. Homes with high occupancy levels, especially in wet areas, generate increased moisture, further affecting indoor air quality. Properties with blocked or limited background ventilation, relying on trickle or passive vents for air supply, also face challenges. Many of these properties require a simple, cost-effective upgrade to existing extraction without major disruption.