Air-conditioning and ventilation filters
We are your filter specialists. We offer a wide range of filters for air conditioning and ventilation technology in accordance with ISO 16890 (formerly EN779) and EN1822, such as:
Pocket filters
Pocket filters with synthetic, glass fibre or nano-wave media are characterised by their versatility and are available in both standard and custom sizes for HVAC applications. Whether in industry, hospitals, office buildings, public buildings or clean rooms, they are the right choice everywhere. Our pocket filters are available with metal, plastic or wooden frames. The pocket filters are available in filter classes according to ISO 16890: Coarse, ePM10, ePM2.5 and ePM1. We can also offer explosion-proof, biostatic, self-supporting and activated carbon pocket filters.
Compact filters
Compact filters are used wherever there are high requirements for air purity. They are mainly used to separate coarse and fine dust, such as bacteria, mould, spores or pollen. The filters are used as pre-filters, main filters or combination filters with activated carbon and are also available in a biostatic design. The filter medium consists of a glass fibre fleece in mini-pleat folds, bonded in a sturdy plastic frame. Compact filters are used in industrial, pharmaceutical and food technology applications. They are dimensionally stable, pressure-resistant and energy-efficient, and offer a large filter area in a small installation space. Lower differential pressures significantly reduce your energy costs. Compact filters can be used as an alternative to conventional bag filters and are technically interchangeable without any problems.
Z-line filters
These versatile pre-filters meet the highest safety standards. Our Z-Line filters are available as pre-filters for panel or pocket filters, heating, air conditioning and ventilation systems, and switch cabinets. They are available in cardboard, fibre plastic, plastic and metal frames, as well as in standard and custom sizes.
Filter cells
Filter cells deliver high performance as pre-filters in ventilation, heating and air conditioning systems. This is thanks to their high-quality, stable materials. We supply filter cells in both standard and custom dimensions.
Filter mats
Our filter mats are characterised by the progressive structure of the synthetic fleece. They are available as coarse dust and fine dust filters on rolls and as cut-to-size pieces. Special shapes of all kinds (e.g. bathroom fans) or filter hoses made from filter mats (fan coils) can be produced individually.
HEPA filters
These filters are perfect for use in the pharmaceutical sector, operating theatre ceilings and ventilation systems in highly sensitive areas. They meet the highest quality standards for the filtration of bacteria, viruses, allergens and fine dust in hospitals, clean rooms, microelectronics and the food industry. Particulate filters (EPA, HEPA and ULPA filters) are divided into 8 different filter classes in accordance with DIN EN 1822: E10, E11, E12, H13, H14, U15, U16, U17. The higher the filter class, the finer the particle filtration. ELSÄSSER particulate filters enable you to achieve the highest possible separation efficiency. Depending on the application, our HEPA filters are available in MDF, metal, plastic, aluminium and stainless steel frames with handle protection. Various sealing systems (PU seal, flat seal, coin seal, etc.) and high-performance HEPA filters in V-shape are also available.
Knitted filters/grease filters, impact separators/flame protection filters
Knitted filters/grease filters made of aluminium, galvanised steel or stainless steel consist of a U-profile with two cover grids and an expanded metal grid or corrugated grid. They are ideal, for example, for separating oil and emulsion mists in catering establishments, power stations, air treatment plants and industrial production facilities. Impact separators/flame protection filters made of stainless steel prevent grease build-up in commercial kitchens, such as those found in restaurants or hotels. The grease is separated by the lamellas, which prevents the formation of flames. Typical applications are aerosols such as grease and oil.Paint-Stop, Dust-Stop, folded cardboard filters and Columbus filters
Our paint mist separators offer protection in spray and paint booths for a wide variety of applications – for both wet and dry separation. Paint-Stop and Dust-Stop are available from us on rolls or cut to size. We also offer folded cardboard filters and Columbus filters in standard sizes.
Activated carbon filters
We offer activated carbon filters in the form of filter cartridges with bayonet locks made of galvanised sheet steel, plastic and stainless steel, as well as pocket filters, compact filters, Z-line filters and panel filters. Filter cartridges are the most common type of activated carbon filter and consist of loosely filled molecular filters. They ensure optimum separation of concentrated molecular contaminants that may be present in the supply air, recirculated air or exhaust air. Our activated carbon filters are ideal for professional use in areas such as laboratories, airports and buildings.
PPI foam
PPI filter foam in black is a polyurethane foam with a completely open mesh structure. The foam is available in various degrees of fineness and in customised thicknesses. PPI foam sheets measure 1,000 x 2,000 mm. These are cut to the desired dimensions or shapes and assembled for you as stamped parts.
Air conditioning technology and ventilation filters at ELSÄSSER
Our extensive range of air conditioning and ventilation filters includes filter classes Coarse, ePM10, ePM2.5 and ePM1 in accordance with the applicable ISO standard 16890. EN1822 covers filter classes E10 to U17 for particulate filters and is characterised by safety, quality and environmentally friendly materials. See for yourself our excellent service, high quality and fast delivery times, and take advantage of our outstanding price/performance ratio.
Various types of filters with activated carbon are available for the adsorption of unwanted odours or gases from the air. We are your competent partner for individual solutions in this product area. Our air conditioning and ventilation filters are available with EuroVent certification. In addition to air conditioning and ventilation technology, we serve various industries such as manufacturing, food, pharmaceuticals and clean room technology with our range of filters.
Air as a foodstuff
We breathe in and out around 12,500 litres of air every day. The quality of this air affects our health, our performance and our well-being. Most people spend around 80-90% of their time indoors. That is why it is important to ensure that indoor air is good, clean and low in pollutants.
The World Health Organisation (WHO) estimates that around seven million people worldwide die each year as a result of air pollution. Breathing polluted air can pose a variety of health risks.
Where are the filters used?
Air filters are installed in all ventilation and air conditioning systems, both in public and commercial buildings as well as in industry. We cover 100% of these with our product range. Our filters are used wherever ventilation systems are used to create a comfortable indoor climate to protect people and their health.
Filter classes according to ISO 16890
The ISO 16890 filter standard fundamentally divides filter classes based on new filter classes (Coarse, ePM10, ePM2.5, ePM1). These are based on the particle size in the existing outside air in µm. For better comparison of the filters with each other, the separation efficiencies are given as a percentage after the respective new filter classes. The old filter classes from G3 to F9 are no longer applicable and may no longer be used.
Why does ISO 16890 exist?
The actual operating behaviour of an air filter in practice differs from the loading behaviour compared to the ASHRAE dust used in the EN 779 test, as this has nothing to do with the dust fractions present in the outside air. The filter evaluation in EN 779 was carried out exclusively for particle sizes of 0.4 µm. In order to obtain more realistic results on the efficiency of air filters, the separation efficiency of the air filters is carried out over 3 fine dust classes, namely PM10, PM2.5 and PM1. The entire particle spectrum from 0.3 µm to 10 µm is included.
How an air filter works
The way a filter works is generally the same regardless of its design. Particles are separated on the inlet side (= dirty side) and transported to the clean air side. Depending on the application, surface or depth filters are used. In the case of a classic bag filter, for example, the air to be cleaned flows through the bags from the inside to the outside. In many systems, filtration takes place across several filter stages. The first filter stage (pre-filter) catches coarse dust. This protects the highly effective fine filter in the second filter stage from excessive dust loading and contributes to improved service life.
For all filter types, such as bag, panel or compact filters, attention must be paid to the installation situation and the alignment. The air direction marking must be taken into account. It is also important to regularly check filters with seals for damage. This is the only way to ensure that the filter can be used to its full potential.
