Vent-Axia has unveiled the industry’s first dedicated continuous-running Decentralised Mechanical Extract Ventilation (dMEV) unit with an integrated indoor air quality sensor (IAQ). 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). Delivering industry-leading performance, the dMEV unit is highly efficient, offers near-silent operation with independently tested sound levels as low as 7.4 dB(A), and an attractive, sleek circular design.
Ideal for PAS 2035 energy-efficiency retrofits, the Lo-Carbon PureAir Cleanse provides continuous whole-house extract ventilation to meet increased airflow requirements in line with Approved Document F (2021). Designed for continuous operation in domestic wet rooms such as bathrooms, toilets, and utility areas, the dMEV delivers effective whole-house ventilation while remaining exceptionally quiet. A brand-new control platform provides fully adjustable airflow, allowing whole-house ventilation rates to be achieved easily using fewer fans. Providing simple installation and quick commissioning, an easy-to-use speed adjustment dial ensures operational speeds are met as required by Building Regulations.
Intelligent air quality sensing enables the PureAir Cleanse to automatically boost extraction when pollutant levels rise, ensuring a healthier indoor environment. Responding intelligently to changes in air quality, the unit meets IAQ benchmarks, such as UBA air quality standards. When unpleasant odours or elevated VOCs are detected, a proportionate boost function is triggered, increasing extraction rates to help clear pollutants more quickly. An important point for installers is that nuisance tripping is minimised, helping ensure happy customers. Sophisticated fan logic ensures that airflow increases are smooth and proportional. Integral humidity sensors allow for gradual speed increases up to high relative humidity levels before enabling boost, avoiding unnecessary noise or energy use.
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. The new Lo-Carbon PureAir Cleanse marks the next generation of dMEV, combining an integrated indoor air quality sensor with ultra-quiet, energy-efficient performance in a solution that is easy to install and commission.”
Designed to offer households a relaxing environment, the Lo-Carbon PureAir Cleanse features a patented delayed start comfort control option. This allows 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. No more disturbing the family if the bathroom light is turned on during the night. Households will also be pleased that 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.
Offering electricians flexible installation, the PureAir Cleanse is IPX5-rated and can be wall and ceiling-mounted within Zones 1, 2, and 3. 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. 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
Providing installers and households with reliability and peace of mind, the Lo-Carbon PureAir Cleanse comes with a 7-year warranty. The Lo-Carbon PureAir Cleanse is also recognised on SAP PCDB.
For further information on all products and services offered by Vent-Axia telephone +44 (0)344 856 0590 or visit www.vent-axia.com.

