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entilation manufacturer Nuaire hopes to pr event thousands of deaths caused by air pollution
with what it considers to be a
revolutionary technology. To coincide with national Clean Air Day on June 21, the company launched the Noxmaster whole-house ventilation system for the retrofitmarket
The Noxmaster combines a
powerful carbon filter with a strategy invented by Nuaire over 45 years ago, Positive Input Ventilation (PIV). This combination is said to remove up to 99.5% of nitrogen dioxide and other harmful pollutants generated by traffic emissions and industrial processes. The Noxmaster delivers clean, filtered air into urban homes, improving the indoor air quality to within safe levels, as rec ommended by theWorld Health Organisation (WHO).
Until now, using carbon filters to scrub airborne pollutants from indoor air has only been used with mechanical ventilation systems which are ducted from each room in a new build
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property. Retrofitting these systems into existing dwellings can be difficult and intrusive. The Noxmaster can be installed in any urban home with a loft. Nuaire business operations director,
Andy Mudie, pollution lev
els, installing carbon filters explains: “With rising air
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has become a planning condition in many parts of the country. But with an estimated 27 million existing homes in the UK, compared with 170,000 new homes built each year, the disparity is clear. The industry has been waiting for a solution for the millions of existing homes that are blighted by poor air quality, and this development addresses the issue for the wider population.” Positive Input Ventilation is a popular strategy started by Nuaire in 1973 with the launch of its Drimaster range. Today, PIV is recognised as an alternative systemin Building Regulations, as certified by the BBA, and is considered an effective method of curing and preventing
condensation
dampness, as well as being a recommended method of reducing Radon gas levels. The Noxmaster
Energy Association ICOM
www.heatingandventilating.net system combines the
PIV approach with a powerful carbon filter that removes up to 99.5% of nitrogen dioxide and up to 75% of harmful particulate matter (PM2.5). Exposure to NOx and PM2.5 is said to reduce life expectancy through a range of diseases including lung cancer, dementia and diabetes.
The carbon filter is also said to
remove other harmful gases produced by traffic emissions, including sulphur dioxide, hydr ocarbons and Volatile Organic Compounds (VOCs), helping to clean up the indoor air and protect the health of the occupants.
Nuaire is running tests with
Noxmaster at Hafodyrynys, Caerphilly - the most pol luted street inWales. A controlled test house has been
monitored for a number of months to show the difference between the pollution levels at the roadside, the pollution levels in a typical property, and the greatly reduced NOx levels with the Noxmaster installed. Test results are likely to be available in early August. Adding carbon filtration to PIV has another major benefit in that it keeps condensation levels low. Richard explained: “The PIV process used by Noxmaster treats the whole property, ensuring the air is constantl y diluted and replaced with fresh, filtered air. Humidity is a major indoor pollutant, which leads to condensation
dampness and mould growth. It keeps moisture levels low, whilst also forcing out pollutants generated by household cleaning and beauty products, cooking with fuel and wood-burning stoves.” Andy says: “For social housing providers, the Noxmaster means tenants living within Air Quality
Management Areas can live comfortably in their homes, benefiting from clean, safe air during the average 16 hours each day that is spent at home.”
Nuaire’s Noxmaster combines a carbon filter with P ositive Input Ventilation (PIV) said to remov e up to 99.5% of nitrogen dioxide
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