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Powerful. Reliable. Energy efficient.Viledon air filtration solutions for hospitalsIndustrial Air Filtration Healthcare

High standardsof air filtration in hospitalsThe requirements for air filtration in thehospital environment can be summarised inthree key statements:1. Protection of patients, visitors and staffagainst airborne contaminants2. Protection against micro-organisms inbuildings3. Reliable filtering of non disease-causingparticles, as these can also act as a vehicle for spreading bacteriaThe function of air filters in hospitalsBecause many interior areas cannot be naturally ventilated, the majority of hospitals areair-conditioned. The increasing height of wardblocks also means that many windows can nolonger be opened. In addition, to prevent microbial contamination, special areas such as operating theatres and isolation rooms are equippedwith high-performance HEPA filters on the airintake and exhaust systems. In operating theatres, the aim is to prevent wound infection andto keep instruments sterilised. In the isolationrooms, to prevent the risk of infection spreadingto other people in the hospital (airborne spread),also the exhaust air needs to be filtered througha HEPA filter.Potential cost savings from air filtrationBecause air filters are built into the hospital’s airconditioning (HVAC) equipment, the need toguard against particulate contamination of anysort is of paramount importance. HVAC systemsare also a key focus of interest due to the factthat so-called “sick building syndrome” can betraced, among other reasons, to poorly maintained and hygienically substandard HVACequipment. To properly protect people’s health,increased demands need to be placed on theperformance of air filtration units within HVACsystems. In this respect, compliance with appropriate standards and policies has a specialsignificance. The installed filters need to guarantee that the proportion of dust particles, bacteria, fungi and organic elements in the air takeninto the hospital – as well as the air emitted bythe hospital into surrounding areas – does notexceed the limits specified by the regulations.For this reason, it must be ensured that the airfilter itself is not, and cannot become, a sourceof hazardous or noxious air particles or constituents.Rising energy prices and the need to reduceCO2 emissions make the use of efficient air filtersan attractive proposition, because this is an areathat offers significant cost-saving potential. Fansin air conditioning systems account for around10 % of a hospital’s total energy use. Of thesecosts, between 10 % and 50 % can be attributed to pressure drops in the HVAC systemcaused by the filters themselves. Reducing pressure losses in air filtration systems creates theability to save energy, decrease costs and reduceCO2 emissions.ConclusionOperators of HVAC systems in hospitals face a twin challenge. On the one hand, they mustcomply with regulations and standards. On the other, they need to reduce energy use and itsassociated costs, while also reducing CO2 emissions. Viledon air filters are the ideal solutionto this challenge.

Standards and guidelines ensure securityThe role of HVAC systems is to guarantee a consistently high and hygienic interior air quality.Various guidelines and standards help to ensurethat these advanced hygiene requirements, whichplay a particularly important role in a hospital’sair quality management function, are met at alltimes. The current standards include in particularGuideline VDI 6022 (in Germany) and the stand-ards DIN 1946-4 and EN 13779. These regulations specifically define key criteria such as structural specifications, intake air quality, air filterquality, hygiene standards, maintenance checks,inspections and so on. Freudenberg FiltrationTechnologies solutions fully conform to the requirements of all currently applicable standards andguidelines.VDI 6022The VDI (Verein Deutscher Ingenieure) is the German Association of Engineers and one ofGermany’s most important regulatory bodies. Their Guideline 6022 (Sheet 1) sets out the requirements for HVAC systems and equipment with regard to planning, manufacture, construction, operation and maintenance, to ensure hygienic operation and adequate protection for people. For more information, please see our customer information sheet“Important notes on VDI 6022”.DIN 1946-4At the end of 2008, the Standards Committee for Heating and Air Conditioning Engineering(NHRS) published the DIN 1946-4:2008-12 regulations. These regulate the operation of HVACsystems in buildings and rooms within healthcare facilities and replace the previous DIN 4799“Air flow systems for operating theatres”. Section 6.5.7 of the regulations sets out the requirementsfor air filtration in hospitals.EN 13779The EN 13779:2007 standard provides for the ventilation of non-residential buildings and providesgeneral conditions and requirements for ventilation, air conditioning and other cooling systems.

Viledon filtration solutionstop quality, energy efficient and service orientatedMeeting all hygiene requirementsViledon reduces energy costsThe hygiene regulations VDI 6022 formulatedclear guidelines for HVAC systems in sensitivebuildings like hospitals. The aim of these regulations is to guarantee the hygienic operation ofHVAC systems and to protect the people whocome into contact with them. Unlike the Viledon air filtration solutions, conventional filters showsignificant shortcomings in relation to these regulations. Viledon solutions fully conform to all therequirements of VDI 6022.Due to their excellent physical properties, Viledonfilters reduce pressure drop in air filtration systems,thus saving energy and operating costs and reducing CO2 emissions.Your benefits moisture resistant up to 100 %relative humidity Your benefits Class-leading energy efficiency properties Long service life with low increase ofpressure drop Low initial pressure difference Easy disposal (made entirely of syntheticmaterials, so capable of full incineration) The materials used do not provide abreeding ground for bacteria and fungiEnergy efficiency classification:the user-orientated filter comparisonThe European energy efficiency classificationsystem EUROVENT 4/11 enables you to judgehow good a filter is in terms of operating costs.Co-developed by Freudenberg, this system allows users to quickly and easily identify energyefficient filters. For the energy-optimized operation of HVAC systems we recommend air filtersof energy efficiency grades A to C. Using thesystem, target filters can be selected accordingto high dust-holding capacity and very slowincrease in pressure drop. Choosing the mostenergy-efficient filters makes a valuable contribution to energy savings while also protecting theclimate and the environment. Examples of highly energy-efficient filters are the Viledon compact pocket filter and MaxiPleat cassette filter.We will be pleased to send you ourlatest case studies. Fully self-contained filter pockets – nocontact with the often humid floor of thefilter house No leakages No pocket filter fibre separation No filter material fibres extracted onthe clean air side Glass fibre-free pocket filtersWith Viledon 4.4 tons less CO2 emissions per year1st filter stage: 9 x conventional M 6 pocket filter2 nd filter stage: 9 x conventional F 9 cassette filterVolume flow: 30,000 m3/ h1st filter stage: 9 x M 6 Viledon compact pocket filter T 602 nd filter stage: 9 x F 9 Viledon MaxiPleat cassette filter MX 98Volume flow: 30,000 m3/ hConventional filtrationViledon SystemPower consumptionPower consumption27,820 kWh / yearElectricity costs*(27,820 kWh x 0.10 / kWh)*Electricity costs for industry (0.10 /kWh),Source: BDEW Bundesverband der Energie- undWasserwirtschaft e.V., correct as of 2011** Specific carbon dioxide emissions of the Germanelectricity mix in 2011 (0.559 kg/kWh of CO2emission factor), Source: German NationalEnvironment Office, FG/2.5., correct as of April 20092,782 CO2 emissions**(27,820 kWh x 0.559 kg / kWh) 15,551 kg / year19,930 kWh / year78Co9st sa vi/ynges ar with Viledonyeartt//y 4re.4duction withCO2 ViledonElectricity costs*(19,930 kWh x 0.10 / kWh)1,993 CO2 emissions**(19,930 kWh x 0.559 kg / kWh) 11.140 kg / year

Nano jetSpin – the unmistakable “Embossed-Plus”in pocket filters of filter classes F 7 and F 8.Viledon serviceSpecifically for hospitals, we offer: Hygiene inspections and hygiene checksin accordance with VDI 6022, usingtrained personnel Filter change, cleaning and disposal,including particle capture measurement Filter monitoringThe built-in spacers ensure optimalpocket form during operation.Viledon filterCair:the complete service packageTo ensure that you are able to exploit the highquality of our filters to maximum effect withinyour complex HVAC plant, we have developeda unique and extensive Filter ManagementSystem: Viledon filterCair. This is a custommade bundled package, consisting of a comprehensive range of filters plus servicing andwarranties. Filter procurement, storage and scheduling Filter comparison measurements Energy efficiency measurements On-site filter training, including the thematicmodules installation / filter change;handling; storage; principles of filtration;filter classification and more State-of-the-art test laboratory Personal customer support Complete range of filtersThe bags are leak-free welded.ConclusionViledon air filters fully meet all the demands of the VDI 6022 hygiene guidelines for HVACsystems and all other relevant standards. They also significantly reduce energy costscompared to conventional filters, as demonstrated in numerous tests. Our comprehensiveViledon service offering completes the package, ensuring optimal filtration in all respects.The bags are securely foamedinto the PUR front frame.

The potential dangersand risks of faulty filtersFungal spores and pollenunder the electron microscopeTypical impurities in the airAtmospheric dustBacteriaAtmospheric dust is composed, among otherthings, of road dust, soot and organic deposits.Dust particles themselves are not usually pathogenic, but may carry micro-organisms.A bacterium is a kind of protozoa withoutnucleus, usually 2 to 3 microns in size. Themultiplication of bacteria is carried out by celldivision. In air circulation systems, the filtersneed to remove the bacteria to prevent themfrom re-entering the hospital buildings. Bacteria can cause serious illnesses such as cholera, diphtheria, whooping cough, tuberculosis or typhoid.PollenPollen is part of the reproductive cells ofplants. Although they are not pathogens, theycan cause allergic reactions and asthma.Because pollen is larger than 15 microns, itcan be effectively removed from the air usinghigh-quality filters.Fungal sporesFungi contain many hundreds of different microorganisms that help to decompose plants. Mostcan cause allergies and a rare few can evencause serious infections. Fungi produce sporesthat can be transmitted through the air.VirusesViruses are the smallest of all parasites (15to 400 nm) and depend entirely on cells forpropagation. They are made up of an outershell (composed of proteins and sometimeslipoids) and a nucleic acid core (RNA orDNA). In most cases, this core penetrates avulnerable cell and so initiates the infection.Viruses cause, among other things, Ebola,influenza, measles, colds or chicken pox.