Bringing the best air quality to your business
Zehnder’s air cleaning solutions offer many different kinds of filter configurations, tailored to fit specific environments.
Filters can be divided into three basic types, based on the filtering method: electrostatic, compact and bag filters. Each filter type also comes in a number of different classes, ranging from coarse filters for catching larger particles, to what’s known as HEPA filters for much smaller, ultrafine dust, viruses and micro-organisms.
If you then factor in Zehnder’s extensive range of air purifiers which contain the filters, there are hundreds of possible combinations to capture many types of dust, fumes, oil mist, gases, germs, micro-organisms and viruses.
In most cases, we combine different filters to ensure the most effective performance of our air cleaning systems. If needs be, we can provide tailormade options, too. By doing this we ensure the best possible air quality in for your business.
Dust is a complex issue that needs expert attention. We‘ll help you find the most appropriate filter solution for your business. Request a call back to discuss your needs!
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Often we cannot see the things that cause potential harm, like airborne dust particles and viruses. Our high-quality dust and virus filters ensure we protect people‘s health and the environment in which they work, product quality and machinery too.
Compact filters come in many different filter classes, ranging from coarse filters for trapping larger, coarse particles, to what’s known as HEPA filters for harmful ultrafine particles, whether chemical, biological or even radioactive. They work as supportive filters and can be obtained in different filter classes (up to HEPA 14).
A Flimmer filter consists of thousands of polypropylene fibres that capture particles mainly using an electrostatic charge. Unlike some other filters, the Flimmer allows a high rate of air flow through it, even when it contains lots of dust. It can be used as Flimmer-only option or as a patented combination with a bag or compact filter. Using the Flimmer as a pre-filter to a compact or bag will significantly prolong the life of the secondary filter.
Bag filters are typically installed in places with very large amounts of dust. They can be used on their own or work in a combination as a pre-filter (before the main filter) or second filter.
In simple terms, dust is a form of air pollution consisting of airborne particles often referred to as particulate matter (PM). Dust in industrial workplaces can occur naturally – as pollen, for example – or from human activity, including manufacturing, construction, farming and quarrying. Particulate matter comes in different sizes, most of which is invisible to the naked eye.
A filter class describes how well a filter performs in trapping different particle sizes/PM categories. As well as guaranteeing our filters meet rigorous requirements, it’s a good way to ensure you’re using the right product to filter out the type of dust particles in your workplace.
ISO 16890 is the internationally recognised classification and testing standard for air filters and replaced the old EN779:2012 norm. It is very similar but not identical to the ASHRAE 52.2 standard which is mostly used in the USA. In order to meet the ISO16890 standard, a filter has to capture at least 50 % of particle sizes from any given particulate matter (PM) category.
EN1822 is the valid standard for certifying for EPA, HEPA and ULPA filters. It´s the official standard in Europe and USA.
Our air cleaning systems are transforming working environments and improving the performance of businesses everywhere. If your business cares about clean air, get in touch with us today to find out how we can improve the air quality at your site!