Vent-Axia has unveiled what it claims is the industry’s first dedicated continuous-running Decentralised Mechanical Extract Ventilation (dMEV) unit with an integrated indoor air quality sensor.
The Lo-Carbon PureAir Cleanse combines intelligent humidity control with advanced air quality sensing, which detects, measures, and helps clear the air of unwanted chemical pollutants – specifically total volatile organic compounds (TVOCs), the firm says..
The dMEV unit also offers ‘near-silent’ operation, with independently tested sound levels as low as 7.4dB(A), and an attractive, sleek circular design.
Vent-Axia says the new unit is designed for continuous operation in domestic wet rooms such as bathrooms, toilets, and utility areas and delivers effective whole-house ventilation ‘while remaining exceptionally quiet.’ The firm adds that it is ideal for PAS 2035 energy-efficiency retrofits, providing continuous whole-house extract ventilation to meet the increased airflow requirements of Building Regs Approved Document F (2021).
In addition, a brand-new control platform provides fully adjustable airflow, allowing whole-house ventilation rates to be achieved easily using fewer fans, while an easy-to-use speed adjustment dial ensures operational speeds are met as required by Building Regulations.
Intelligent air quality sensing
The PureAir Cleanse incorporates intelligent air quality sensing, automatically boosting extraction when pollutant levels rise, The firm notes the unit meets IAQ benchmarks, such as UBA air quality standards and adds that the intelligent sensing ensures ‘nuisance tripping’ is minimised. When unpleasant odours or elevated VOCs are detected, a proportionate boost function is triggered, increasing extraction rates. Integral humidity sensors allow for gradual speed increases up to high relative humidity levels before enabling boost, avoiding unnecessary noise or energy use, the manufacturer adds.
The Lo-Carbon PureAir Cleanse features a highly efficient EC/DC motor and boasts a specific fan power (SFP) as low as 0.08 W/ls, which helps keep energy costs down.
Ashley Smith, Product Manager at Vent-Axia said:
As homes become more energy-efficient and airtight, indoor air quality has become a critical consideration with growing concerns around indoor air pollution, condensation, mould, and occupant health. At the same time, Building Regulations are driving higher ventilation rates, placing greater emphasis on noise and occupant comfort.”
Smart controls and simpler installation
In addition, a patented delayed start comfort control option enables homeowners to enjoy a ‘quiet, peaceful bathroom’ for up to 20 minutes before the boost activates. In addition, if the light switch is turned on and off within three minutes, the boost will not activate.
The fan also only requires a low ceiling void of 56mm and has a 100mm spigot, making it easier to install in refurbishment projects when replacing an existing extractor fan, Vent-Axia says.. Meanwhile, high-pressure development and the silent mixed flow impeller mean the Lo-Carbon PureAir Cleanse can meet the requirements of many domestic applications without the need to use a traditional centrifugal fan, simplifying system design. The new unit comes with a 7-year warranty and is also recognised on SAP PCDB.
