At Vent-Axia we welcome this new research which confirms there is no doubt that poor indoor air quality has an adverse impact on health
Vent-Axia, a leader in low carbon ventilation, has welcomed the raised awareness surrounding the importance of good indoor air quality following the latest findings which reveal the significant risk of polluted indoor air in our homes. According to a recent survey by trade association BEAMA over one third of UK homes are at an elevated or severe risk of having polluted indoor air. The My Health My Home survey (http://www.myhealthmyhome.com/) revealed that 35% of those surveyed potentially had this risk in varying levels of severity.
This survey is significant since it highlights the numbers of homes that could be at risk of breathing in polluted air and follows on from the latest research on indoor air quality by a leading academic at The University of Reading. Professor Hazim Awbi’s report, “The Future of Indoor Air Quality in UK Homes and its Impact on Health”, states the health risks associated with poorly ventilated homes in no uncertain terms.
One of the revelations in this new report is that, as new and refurbished homes become ever more air tight to meet the Government’s carbon emission targets for 2050, the number of people suffering with asthma could almost double by then. It also states that current building regulations could increase indoor pollutant levels equivalent to the upper end of (and in some cases well above) World Health Organisation recommended limits.
The report examines how increasing levels of energy efficiency will impact on pollution levels and health if there is no additional intervention, over and above existing requirements. Key projections for 2050 include: an 80% increase in asthma sufferers from current levels; Total volatile organic compound concentrations up to 60% above World Health Organisation (WHO) 24 hour limits; and NO2 concentrations up to 30% above WHO annual limits.
"To avoid a serious and significant increase in asthma cases – which could be up to 80% - and other health conditions related to poor indoor air quality, homes must be adequately ventilated. In addition to the need for mechanical ventilation systems I would also advise that a minimum air exchange rate that new homes must meet is enforced and there is tighter regulation to ensure systems are adequately installed, operated and maintained," said Professor Hazim B. Awbi, School of Built Environment, University of Reading.
In addition, the report suggests that there should be a legal requirement for new homes, and guidance for retrofitted homes, to have an air exchange rate of at least 0.5/hour, to help protect human health. It states that the most cost-effective solution for achieving this exchange rate, whilst still satisfying energy efficiency requirements, is the standardised fitting of effective continuous mechanical ventilation, preferably with heat recovery (MVHR).
“At Vent-Axia we welcome this new research which confirms there is no doubt that poor indoor air quality has an adverse impact on health. It is important that the public is aware of the dangers of poorly ventilated homes,” says Jenny Smith, Marketing Manager at Vent-Axia. With many people spending the majority of their time indoors, improvements in indoor air quality must be seen as a priority. Continuous ventilation is a simple solution to air quality problems.”
Designed to work with the natural air infiltration, continuous ventilation systems control the air path through the home. As a result, they prevent the migration of damaging humidity and pollutants, providing near silent energy efficient ventilation. There are a number of options available, both for new builds and for retrofitting and the latest continuous ventilation systems also offer heat recovery.
For new build homes there are continuous whole house Mechanical Extract Ventilation (MEV) and mechanical ventilation with heat recovery (MVHR) solutions, such as Vent-Axia’s Sentinel Kinetic MVHR system which boasts an impressive 94% thermal efficiency. For refurbishments, there are continuous Decentralised Mechanical Extract Ventilation (dMEV) systems, such as Vent-Axia’s Lo-Carbon Response. In addition, there are also dMEV single room heat recovery units available, such as Vent-Axia’s Lo-Carbon Tempra, which can be simply retrofitted through a 100mm diameter hole in the wall allowing standard wet room extract fans to be easily replaced.
For up-to-date ventilation guidance and an overview of the research visit www.vent-axia.com/healthyhomes. For further information on all products and services offered by Vent-Axia telephone 0844 856 0590 or visit www.vent-axia.com.
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