Vent-Axia 496738 Lo-Carbon Response 7 125mm dMEV Extractor Fan
Vent-Axia 496738 Lo-Carbon Response 7 125mm dMEV Extractor Fan
The Vent-Axia 496738 Lo-Carbon Response 7 125mm dMEV Extractor Fan is a high-performance, energy-efficient continuous ventilation solution designed specifically for social housing and domestic properties. Featuring intelligent Smart Sense™ technology, an ultra-low-profile design and advanced digital controls, this extractor fan provides reliable ventilation to help reduce condensation, excess moisture and unpleasant odours.
With extraction rates of up to 35 litres per second, a 125mm duct connection and quiet, filterless operation, the Lo-Carbon Response 7 is ideal for bathrooms, kitchens, utility rooms and toilets. Its intuitive commissioning interface, energy monitoring and lockable settings make it particularly suitable for landlords, housing associations and professional installers seeking dependable, low-maintenance ventilation.
Key Features
- Continuous dMEV Ventilation: Provides effective background extraction to help maintain healthy indoor air quality.
- 125mm Duct Connection: Designed for installation with compatible 125mm ventilation ducting.
- High Extraction Performance: Delivers airflow rates of up to 35 l/s for effective moisture and odour removal.
- Smart Sense™ Technology: Intelligent digital controls simplify installation, commissioning and operational monitoring.
- Digital Airflow Monitoring: Displays installed airflow and system pressure information to support accurate commissioning.
- Energy Consumption Monitoring: Records operating days, trickle and boost running hours, and energy usage.
- Ultra-Low-Profile Design: Compact construction provides a discreet appearance in domestic interiors.
- Filterless Construction: Reduces maintenance requirements and eliminates the need for routine filter replacement.
- Efficient Trickle Ventilation: Maintains effective background extraction to minimise unnecessary boost activation.
- Comfort Control Option: Selectable delayed boost activation helps reduce noise during short bathroom visits.
- Lockable Settings: Prevents unauthorised changes to commissioned ventilation settings.
- Wall or Ceiling Installation: Flexible mounting options with an automatically orientating LED display.
- Optional Decorative Frame: Available to provide a neat finish around the installed fan.
- Lo-Carbon Motor Technology: Designed for efficient continuous operation and reduced electricity consumption.
- Social Housing Design: Developed to meet the ventilation and maintenance requirements of managed residential properties.
- 7-Year Warranty: Manufacturer-backed warranty for long-term peace of mind.
Continuous Decentralised Mechanical Extract Ventilation
The Vent-Axia Response 7 125mm uses decentralised mechanical extract ventilation (dMEV) technology to provide continuous removal of stale, humid air from domestic spaces.
Its high-performance trickle ventilation helps maintain effective background extraction, reducing the need for frequent boost operation. When additional ventilation is required, boost mode increases airflow to remove excess moisture, steam and household odours more quickly.
With a maximum extraction rate of 35 l/s, the fan is suitable for bathrooms, kitchens, utility rooms and toilets requiring reliable continuous ventilation.
Smart Sense™ Intelligent Control Technology
The integrated Smart Sense™ control system provides straightforward installation, commissioning and performance monitoring through a clear alphanumeric LED display and three-button menu.
The digital display automatically adjusts its orientation according to whether the fan is mounted on a wall or ceiling, improving readability and reducing installation complexity.
Smart Sense™ technology provides useful operational information, including:
- Total number of days the extractor fan has been operating.
- Running hours in continuous trickle mode.
- Total operating hours in boost mode.
- Boost running hours triggered by humidity control, where applicable.
- Recorded energy consumption.
- Installed airflow and system pressure information.
This detailed monitoring functionality is particularly valuable for landlords and housing associations managing ventilation performance across multiple properties.
Digital Airflow and System Pressure Display
The Vent-Axia Lo-Carbon Response 7 features an innovative digital display that provides information about the fan's installed airflow and system pressure.
This allows installers to check ventilation performance during commissioning and helps ensure that the unit is operating at the intended extraction rate.
The simple digital interface supports accurate configuration and reduces the time required for installation and maintenance checks.
High-Performance Trickle and Boost Ventilation
The Response 7 125mm extractor fan is engineered to deliver effective continuous ventilation at trickle speed, helping maintain indoor air quality while reducing unnecessary boost operation.
When increased extraction is needed, boost mode provides additional airflow to help remove excess humidity, condensation and unpleasant odours.
This combination of background and boost ventilation provides an effective solution for moisture management in domestic and social housing properties.
Comfort Control Technology
The Lo-Carbon Response 7 range features an optional patented Comfort Control function designed to improve occupant comfort by delaying boost activation.
When selected during installation, the delayed-start function can postpone boost operation for up to 20 minutes, allowing residents to enjoy a quieter bathroom environment.
If the bathroom light is switched on and off within three minutes, the boost function will not activate. This feature is particularly useful during night-time bathroom visits, helping minimise disturbance to other household members.
Designed for Social Housing
The Vent-Axia 496738 has been developed to meet the practical requirements of social housing providers, landlords and residents.
Its filterless construction reduces routine maintenance requirements, while the ultra-low-profile design blends discreetly into modern domestic interiors.
The integrated settings lock helps prevent unauthorised adjustments to commissioned ventilation settings, supporting consistent extraction performance.
Smart Sense™ operational monitoring also enables property managers to review fan running time and energy consumption, providing useful information for ongoing maintenance and ventilation management.
Energy-Efficient and Low-Maintenance Performance
Featuring Vent-Axia's Lo-Carbon motor technology, the Response 7 125mm delivers reliable continuous ventilation with low electricity consumption.
Its efficient trickle operation helps minimise unnecessary boost cycles, while the filterless design eliminates the need for regular filter replacement.
The compact footprint and optional decorative frame support a neat, professional installation in both existing and refurbished properties.
Technical Specifications
- Manufacturer: Vent-Axia
- Product Code: 496738
- Product Range: Lo-Carbon Response 7
- Model: Response 7 125
- Product Type: Continuous Extractor Fan
- Ventilation Type: Decentralised Mechanical Extract Ventilation (dMEV)
- Duct Connection Size: 125mm
- Maximum Extraction Rate: 35 l/s
- Ventilation Operation: Continuous Trickle and Boost
- Motor Technology: Lo-Carbon
- Control System: Smart Sense™
- Display: Alphanumeric LED
- Commissioning Interface: Three-Button Menu
- Performance Monitoring: Airflow and System Pressure Display
- Data Logging: Days Run, Trickle Hours, Boost Hours and Energy Consumption
- Settings Protection: Lockable Controls
- Installation Options: Wall or Ceiling Mounting
- Construction: Filterless, Ultra-Low-Profile Design
- Optional Accessory: Decorative Installation Frame
- Applications: Bathrooms, Kitchens, Utility Rooms and Toilets
- Primary Sector: Social Housing
- Warranty: 7 Years
Applications
- Domestic bathroom ventilation
- Kitchen extraction and moisture management
- Utility room ventilation
- Toilet and WC extraction
- Social housing ventilation upgrades
- Residential refurbishment and renovation projects
- Continuous decentralised mechanical extract ventilation
- Landlord and housing association properties
- Condensation and indoor air quality management
Installation Information
The Vent-Axia Response 7 125mm supports wall and ceiling mounting, with its automatically orientating LED display helping simplify commissioning in either installation position.
The fan features a 125mm duct connection and an ultra-low-profile design for discreet installation. Its digital control interface allows installers to configure ventilation settings and review operating performance directly from the unit.
Important: Constant volume airflow control is specified for Response 7 Pro models and should not be assumed to be included with this standard Response 7 125mm model.