Indoor Air Quality – A new way of comparing air filters – put your supplier to the test

There is a good chance that, at this very moment, you are breathing clean air that has passed through a filter manufactured by us.  Our products can be found everywhere from offices to clean rooms for sensitive electronics production, schools, mines, factories, hospitals and nuclear power stations.

The new Eurovent energy classification facilitates filter comparisons.  Filters are now graded from A to G, with “A” standing for the lowest energy consumption and “G” for the highest.  The new classification, based on EN779:2012**, gives customers a clearer understanding of a filter’s annual energy consumption, initial efficiency and minimum efficiency. To reflect this new classification system,  Camfil Farr is now changing the labels and product names of filters to include the new A to G energy rating. This information clearly points out the difference between our filters and competitor products, making it easier to select the right filter for the right application for the best energy efficiency and filtration.

Camfil argues that better indoor air quality (IAQ) can help businesses reduce energy costs and carbon emissions, while also improving the health and productivity of employees.

The best air filtration systems can help businesses protect employees from 90 per cent of air pollutants for up to 90 per cent of the time. Ask yourself the question: does our ventilation system include regularly maintained air filters that comply with European guideline EN 13779 and if not, why not?

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Indoor Air Quality – Do you know the sources of IAQ problems in buildings?

As we all spend on average 90% of our time indoors it is important the quality of air we breathe and indoor air conditions we experience are good. We all like the air to be clean, and within a narrow band of comfortable temperature and humidity.  So what are the sources of poor indoor air quality in buildings?

IAQ Indoor air quality - office productivity

The comfort band varies from person to person but would generally be about 20-24 deg.C.room temperature and  40-60 %Relative Humidity for most people.

Clean air however can be more of a problem to get these days in urban locations where there are high levels of background air pollution. This pollution can be in either in solid particle or gas form.

In large public buildings there are contaminant sources from outside the building and inside the building. If the building is not well managed a high level of a contaminant or ‘cocktail’ of contaminants can cause bad health reactions from the building inhabitants leading to the term known as ‘Sick Building Syndrome’. It is worth considering the more common problem contaminants that lead to this situation.

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Did You Know? – Dust Particles can damage your Health

There are dust particles of many different sizes and types floating in the air we breathe. In urban environments like London each cubic metre of air may hold hundreds of thousands, even millions.

Small particles usually escape our attention because we cannot see them. Any particle below 10 microns in size is said to be invisible to the human eye. (A micron is a one thousandth of a millimetre.)

Large dust particles settle out of the air very quickly because gravity has a greater pull on them.

From this diagram you can see it is only the very small particles that stay airborne for a long time. Very small particles below I micron in size will float around for weeks and even months. These are the particles that are small enough to be inhaled into our lungs when we breathe in dust-laden air. Continue reading