hepa negative air Articles

  • Hepa this Hepa that, is there such thing as a true Hepa vacuum?

    We all see it, the big Hepa sticker on the side so we automatically believe the vacuum must be a Hepa rated vacuum, right? - Sorry the chances are the Vacuum would never pass a Certified D.O.P test. Just because a vacuum has a Hepa filter doesn't make it a Hepa vacuum, many factors have to be taken into account such as: The Hepa Filter needs to be sized according to the airflow ...


    By Hypervac Technologies

  • Air Pollution Is Making Office Workers Less Productive

    Businesses invest a great deal of time and money in interventions that claim to increase workers’ productivity through on-the-job training, new protocols, advice from consultants, and so on. Recent research suggests that there’s a surprising input into productivity that no one ever thinks about: clean air. We all know that air pollution is bad for our health, and researchers ...


    By Camfil Ltd

  • Manufacturing facility cleaning case study

    The Challenge A large Industrial manufacturing facility found that their process used to perform the necessary tasks was creating an undesirable accumulation of heavy metals dust throughout the entire plant. Not only was this a potential health risk to the plant workers, there was a structural and safety problem because the dust could spark and cause a fire or explosion. ...


    By Enviro-Vac Corp.

  • How do oil mist collectors work? Comparing the different technologies, part II

    In our previous article about oil mist collector technology, we discussed the pros and cons of centrifugal mist collectors and filter-based mist collectors. Today, we look at the other two most common methods of getting oil mist out of the air. Electrostatic Precipitator Mist Collectors An electrostatic precipitator uses ...


    By ProVent, LLC

  • Suggested Practice for Remediation of Highly Infectious Biological Agent Contamination in Indoor Environments

    Untitled Document PURPOSE This suggested practice describes those basic procedures to be followed, and precautions ...

  • The Asbestos Management and Maintenance Program

    STEP ONE: ASSESSMENT AND SURVEYThe first step of the Asbestos Management Program is to do an asbestos survey to assess the location, identify the type of asbestos, the condition of the asbestos and identify a maintenance record. This asbestos inventory or assessment is usually carried out by an independent consulting firm. This assessment or survey will include: Identification and location of the ...


  • Prevent hospital acquired infections during construction projects

    The issue of hospital acquired infections is a serious problem. According to several sources, three to four million hospital-acquired infections occur annually, with up to 80,000 fatalities. The costs of these infections are estimated to be between $4 billion and $5 billion per year (Air-Treatment Systems for Controlling Hospital acquired Infections, HPAC Engineering, April 2, 2008).Healthcare ...

  • Intelligent Pollution Control

    The world faces difficult pollution control decisions. For every dollar spent on pollution control, there is an alternative investment in health improvement. For every dollar spent on reducing one pollutant, there is an alternative to reduce another. The most prudent course to make the best investment should include: Intelligent uncertainty Intelligent classification of options ...


    By The McIlvaine Company

  • EnviroVantage-experts in asbestos abatement

    Asbestos is a group of naturally occurring minerals with long, thin fibrous crystals. It was sometimes referred to as the 'miracle mineral' because of its beneficial properties such as insulation and fire protection. In the U.S., chrysotile has been the type of asbestos used most commonly. Its long fibers are often found in a wide variety of materials such as vinyl floor tiles, mastic, sheetrock, ...


    By EnviroVantage

  • Mold, Mold Growth and Buildings

    Concern about mold exposures in buildings continues to be a significant issue. The bottom line is that mold has been around for eons and is not going away.  It will grow whenever and wherever buildings get wet and materials suitable for mold growth are present.  The following paragraphs are meant to shed light on mold issues related to microbiology, health and safety, moisture control, ...

  • What is Activated Carbon?

    Adsorption with activated carbon can apply. The more awareness people have of the Earth, the more applications activated carbons will have. is thus a commonly seen process in applications such as gas masks, space capsules, nuclear plants and so forth, in which the removal of gases is highly needed. ...


    By Cocarb

  • Mishandling of Hazardous Materials & Contaminants, Asbestos, Lead, Mould & Fungus, PCB`S

    Untitled Document Everyday in Canada and the United States Hazardous Materials are being removed improperly contaminating the buildings we occupy. The hazardous materials including ...

  • Crossflow Membrane Filtration High-Purity Water Systems

    INTRODUCTION As the electronics industry continues to provide us with such products as high resolution television, notebook size portable computers and cars with automatic navigation systems, it becomes necessary to produce semiconductors with finer device geometries to allow for efficient placement of more circuits per a given area. This requires increased control of a semiconductor's material ...

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