They should be as small and thin as possible, and carefully hidden so that no one notices them. Nevertheless, they constantly prevent us from breathing polluted air in our homes and workplaces.
With these components being hidden, we also tend to forget maintaining them. Or occasionally replacing them whenever they’ve been worn out. But just as they have a tremendous positive impact on our health when functioning properly, not replacing ineffective ones has a negative impact – on both the energy bill and the indoor air quality.
But what are these small, yet essential parts, that goes unnoticed? Well, it’s the air filtration. Hidden in your ventilation system. Day in and day out, these brave little soldiers protect you from breathing polluted air – providing fresh air to indoor areas, and enabling you to stay healthy and sound.Essential component for better indoor climate
As the focus on energy efficiency and air quality in buildings continues to rise, the air filters are playing an increasingly important role. The latest initiative for securing better and cleaner filters in ventilation systems, is a guidebook from Eurovent, Europe’s Industry Association for Indoor Climate (HVAC), Process Cooling and Food Cold Chain Technologies. Specific attention is given to the new global standard for testing and classification of air filters, ISO 16890. The new standard, released on 1 December 2016, has global applicability as every country in the world voted for it. The standard recognizes that air filters enhance air quality, and therefore benefit human health.
Unsurprisingly, Eurovent introduces their guidebook by stating that air filters play an essential role in all kinds of indoor climate areas. Furthermore, they describe that air filters can also have a strong impact on the energy performance of buildings as well as air handling equipment. The use of ineffective air filters or a lack of filter maintenance and replacements can even nullify the efficiency gains of the entire product in which filters are incorporated.
For example, filters in an air stream causes flow resistance. Pressure drop therefore defines the energy demands since the fan which is providing air must work to supply the required pressure. The more dust in the filter, the higher is the pressure drop. Naturally, this means higher energy demand and hence higher energy costs due to the fans increased power consumption. You could say that every 1 Pa pressure drop is equivalent to 1 EUR increased energy cost.
Awareness has been substandard
While the understanding of air filters effect on health and energy consumption is common knowledge among air filter manufacturers, this is not the case with many of their customers, end users, and (especially) legislators. And the Eurovent Guidebook aims to fill this gap and raise awareness on the importance of air filters.