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Application note: Clean room dehumidification ensures reliable test results
15 January 2016 • Author(s): Munters
Scandinavian Micro Biodevices (SMB), in Denmark, develops, produces and markets ‘point-of-care’ diagnostic systems for the veterinary market. In order to maintain a very low level of humidity in the clean room, a desiccant dehumidifier is required. An air quality of 5000m3/h must be maintained with the required condition of no more than 20% RH at 21°C, which corresponds to a water content of just three grams per kilogram of air. Munters’ solution is an MX5000 dehumidification system with pre and post cooling.
During the summer period, water content of 3g/kg is required. Before the air is blown into the clean room, it is cooled down to 20°C. In the winter, the process air is mixed with the extract air at +8°C, after which the air is again led through the dehumidifier and onto a post heater, which heats the air to 20°C before it is then directed into the clean room.
In order to meet particle level requirements, the process air is passed through an F9-filter in the dehumidifier. Before being blown into the clean room, further filtration is carried out through a HEPA14 filter.
The installation is controlled by Munters DryTonic control system which, as well as controlling the dehumidifier, also regulates the cooling, the heating and the humidity level.
ABB Analytical Measurement ACD/Labs ADInstruments Ltd Advanced Analytical Technologies GmbH Analytik Jena AG Astell Scientific Ltd B&W Tek Bachem AG Bibby Scientific Limited Bio-Rad Laboratories BioNavis Ltd Biopharma Group Black Swan Analysis Limited Charles Ischi AG | Kraemer Elektronik Cherwell Laboratories CI Precision Cobalt Light Systems Coulter Partners CPC Biotech srl Dassault Systèmes BIOVIA DiscoverX Edinburgh Instruments Enterprise System Partners (ESP) EUROGENTEC F.P.S. Food and Pharma Systems Srl IDBS JEOL Europe L.B. Bohle Maschinen + Verfahren GmbH Lab M Ltd. LabWare Linkam Scientific Instruments Limited Metrohm Molins Technologies Multicore Dynamics Ltd Nanosurf New England Biolabs, Inc. Panasonic Biomedical Sales Europe B.V. PerkinElmer Inc ReAgent Russell Finex Limited Source BioScience Takara Clontech Tornado Spectral Systems Tuttnauer Watson-Marlow Fluid Technology Group Wickham Laboratories Limited Xylem Analytics YMC Europe GmbH Yusen Logistics