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Removing Particles from Air-Conditioning Systems  by: Thomas Yoon Do you know that air-conditioning involves more than controlling the temperature of the air? For stringent climate control, the relative humidity, smells and dusts are also controlled. Today's topic is on air conditioning filters. These are the tools to control dust particles from entering the air-conditioned space. "Dust" could be a misnomer when we enter into the world of cleanrooms. Even tobacco smoke and bacteria are particles that can be filtered off! Prefilters Having efficiencies ranging from 50% to 85%, prefilters are used for protection against accumulations of textile fibres and insects. They are ineffective in separating smoke, pollen and staining particles like soot, oil mist. Those with efficiencies above 85% are able to collect pollen and have some limited effect against smoke and staining particles. These are used in dehumidification systems. In textile industries, prefilters are used in air-conditioning systems to protect heat exchangers, humidifiers and fans. Window mounted air-conditioning units use them for protecting the evaporator coils. Those with 85% efficiencies are used to control dusts from entering food handling premises and kitchens. Fine filters Fine filters are those with efficiencies ranging from 40% to 98%. Those in the 90% to 98% range are very effective against staining particles like soot and oil mist. They are also very effective against bacteria. Their users includes air-conditioning for schools, kitchens, filing rooms, light engineering workshops, restaurants, and air curtains for food shops. The higher ranges are suitable for operating theatres, laboratories, and computers. Absolute filters Absolute filters are the most efficient filters around with efficiencies ranging from 85% to more than 99.97% They are highly efficient in collecting bacteria, radioactive dusts and all kinds of smoke and aerosols. They are used for constant climate precision measurement or calibrating rooms, special clean air laboratories, operating theatres, sterilization rooms, and clean rooms. About The Author Thomas Yoon Many years of working experience in Marine, Facilities, Construction has given the author material for writing e-books and articles related to engineering, and management. Subscribe to facworld ezine by sending an email to mailto:facworld-subscribe@yahoogroups.com. More information at http://www.free-marine.com and http://www.free-engineering.com This article was posted on September 07, 2006   View More Videos from the "Home Improvement" category: Cloned Meat - ZapRoot How to Arrange a Home Office Layout How to Select a Kitchen Layout How to Use Mulch in a Garden   Read More Articles from the "Home Improvement" Category: Finishing Touches Make the Difference Between Drab and Fab by ARA Content What Are The Benefits Of Using Fake Grass Perth? by Justin Everley Where to Search for Top Electricians in Atlanta by Terrell McCall Stores Where You Can Find Drapery Blinds by Low Jeremy Protecting Your Limestone Floor Investment by Edward Green Deck Building Basics by Dean Novosat Creating The Ultimate Home Game Room by Joe Schmieder Secure Public Self Storage Facilities and Services Available in Fort Lauderdale, Riverland, Dania Beach, Harbour Isles of Ft Lauderdale and Lauderdale by Chris Lontok How To Plan Your Vegetable Garden From Seeds by Mark Robins Yanking My Date Through An Israeli Security Services Lie Detector… by Jarvis Stevens << Back to "Home Improvement" Index

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