local exhaust ventilation News

  • LEV III™ - Local Exhaust Ventilation Hoods

    LELAND, NC, July 13, 2018 — Flow Sciences, a leading provider of containment systems for laboratory, pilot plant, and manufacturing is now shipping the LEV III™, an addition to its expanding line of standard enclosures. ...


    By Flow Sciences Inc

  • Roadshows held to encourage cleaner air in workplaces

    A series of interactive roadshows have been helping employers in industries such as welding and stonemasonry understand the risks of exposure to dusts, gases, mists, fumes and vapours. The events, hosted by the Health and Safety Executive (HSE), aimed to help small businesses control the potential for illnesses, such as asthma and silicosis, which affect thousands of workers every year, by ...

  • General Guidelines For Welding Unit Sizing

    As a general rule of thumb, when using an 8″ diameter arm for local exhaust ventilation hood (LEV) the user should have a minimum of 900 CFM per LEV hood with a recommended airflow of 1150 CFM per LEV hood. For a 6″ diameter arm the user should have a minimum of 525 CFM per LEV hood with a recommended airflow of 650 CFM per LEV hood. The hood for an 8″ diameter LEV arm should be ...


    By Air Quality Engineering

  • Countertop and Stone Fabrication Workers and Silicosis Risks from Engineered Products in Puerto Rico

    Earlier this fall, the Centers for Disease Control and Prevention (CDC) released a new report in the agency’s Morbidity and Mortality Weekly Report (MMWR). The article examined 18 cases of silicosis, including two fatalities, which occurred in stone fabrication workers. Silicosis is caused by exposure to respirable crystalline silica dust and is a progressive, disabling and often fatal ...


    By Cochrane & Associates, LLC

  • Pumps Vs Real Time Measurements; no time like the present

    Hands up to all those who can remember a time before the personal air sampler (PAS)? Not many I guess, but then they only do commerically date back to the early 1960's in Europe and the US, at a time when the American Industrial Hygiene Association (AIHA) only had a few hundred members. The history of personal air sampling instrumentation The personal sampling pump was developed under ...


    By Casella

  • Building America Update – August 8, 2014

    Top Innovation Spotlight: Quality Management System Guidelines Webinar: High Performance Enclosure Strategies, Part II Building America Code Compliance Briefs Support Market Adoption of Innovations Zero Energy Ready Home Technical Webinars and Trainings New DOE Energy Conservation Standards for Residential Furnace Fans Residential Successes: Community-Scale, Affordable High Performance ...


    By US Department of Energy

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