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High-efficiency particulate air (HEPA) filters and ultra-low particulate air (ULPA) filters are designed to screen particles larger than 0.3 µm
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  • Evaluating sample preparation techniques for cleanroom wiper testing
    of DI water, which is also decanted into the beaker. The contents of the beaker are filtered for particle counting by SEM. As with all the techniques evaluated, during testing background particle counts of the tray, beaker, and filtration apparatus were run before the introduction of the test
  • What to Know When Considering a Cleanroom (.pdf)
    make educated choices. The paper was developed by the technical staff at Simplex, with the assistance of Richard Matthews of Filtration Technology, Inc., in Greensboro, NC. Matthews chaired the ISO board that developed these standards in 2001.
  • Tips For Designing Clean-Room Equipment
    filtration systems that introduce laminar airflow from elevated work surfaces to grated floors or to exhaust ducts at wall bases. FED STD 209E specifies maintaining the flow at 90 ft/min through a given cross section of the room. The ceiling-to-floor flow affects equipment designs two ways. First, don't
  • Improving Energy Efficiency in Pharmaceutical Manufacturing Operations Part II: HVAC, Boilers and Cogeneration
    ]. Another recent study [7] estimated the following energy distribution for cleanroom operation: 56% for cooling, 36% for heating, 5% for fans, and 3% for pumps. The following measures can improve energy efficiency in cleanrooms: Reduce recirculation air charge rates. Improve air filtration quality
  • Containment Technologies Group
    for contamination by lessening traffic between the two rooms. Internal environment. The internal environment is created by filtration of the air entering the room through a high-efficiency particulate air (HEPA) filter. The classification of the air quality, in terms of particulates, is a function of the number
  • Product Technology News
    gases and high flow rates in air delivery systems. Filtration areas range from 16 to 2200 cm2. A wide selection of connectors and housing sizes are available. Centrifugal Pump Ansimag Elk Grove, IL The KM-series centrifugal pump has a Teflon fluoroplastic casing and impeller and silicon
  • Containment Technologies Group
    , static dissipative vinyl tile (SDVT) is adhered directly to the substrate. (I) High-efficiency particulate air filtration is achieved through the use of ceiling systems like the one in this picture. HEPA filters, in conjunction with mechanical systems, remove contaminants from cleanroom environments
  • Medical Device Link .
    important are plenum grids that enable proper placement of HEPA filtration units at optimal locations as well as hollow-wall air returns that allow previously cleaned air to be recycled. Such returns extend the life of the HEPA filters cleaning the air. Ideally, cleanrooms should employ

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