airborne disinfection Articles

  • Computational fluid dynamics modelling of UR–UVGI lamp effectiveness to promote disinfection of airborne microorganisms

    This paper focuses on using computational fluid dynamics (CFD) modelling methods to study the effectiveness of upper–room ultraviolet germicidal irradiation (UR–UVGI) lamps in healthcare facilities. This work develops and uses simplifications for boundary conditions in CFD, while details of UR–UVGI lamps and microorganism characteristics were obtained from existing experimental ...


    By Inderscience Publishers

  • The Application of Ultraviolet Germicidal Irradiation to Control Transmission of Airborne Disease: Bioterrorism Countermeasure

    Synopsis Bioterrorism is an area of increasing public health concern. The intent of this article is to review the air cleansing technologies available to protect building occupants from the intentional release of bioterror agents into congregate spaces (such as offices, schools, auditoriums, and transportation centers), as well as through outside air intakes and by way of recirculation air ...


    By E-CO

  • Use of CFD Modelling to Optimise the Design of Upper-room UVGI Disinfection Systems for Ventilated Rooms

    AbstractThe installation of upper-room ultraviolet germicidal irradiation (UVGI) devices in ventilated rooms has the potential to reduce transmission of infections by an airborne route. However, the performance of such devices is dependant on several factors including the location of the lamp and the ventilation airflow in the room. This study uses a CFD model to evaluate the performance of UVGI ...


    By SAGE Publications

  • Bird flu – pandemic or histeria?

    Bird flu, Avian Influenza or Influenza A virus, subtype H5N1 is a virus that is adapted to infect birds, especially in Southeast Asia. There is no evidence of efficient human-to-human transmission or of airborne transmission to humans. In almost every recorded human case, the affected persons had extensive physical contact with infected birds. About half of those who contracted the virus died ...

  • Bird droppings – a strange, but real hazard!

    Anyone who has lived or worked in a city or even a small town with a city hall or churches with bell towers knows the problem – Pigeons!  Also called “winged rats,” they love to roost in abandoned buildings, on the ledges of office buildings, skyscrapers, in bell towers and especially on statues in parks.  But roosting isn’t all they do.  We’re all ...


    By Atlantic Environmental, Inc.

  • Antimicrobial Action of BiOn filtration media

    Bi-On is an air filtration media used in fruit and vegetable sold storage to eliminate harmful volatile compounds, especially ethylene, and sanitize the air. The filtration media is composed of potassium permanganate, its active ingredient, and natural clays. Potassium permanganate is a chemical compound which is widely known for its oxidizing and disinfectant properties. It is used in the ...


    By Bioconservacion SA

  • Operating Room - UVC lights provide infection control, green benefits

    Muskogee Community Hospital (Muskogee, OK) is using germicidal UVC (ultraviolet C) Emitters™ from Steril-Aire as part of an innovative infection control measure. The devices were installed in the air handling units and in custom-designed, ceilingmounted units in the surgical and procedural suites, marking the first time a hospital has used UVC technology in this way. Steril-Aire devices ...


    By E-CO

  • Zentox system saves money by cleaning, reusing water

    Washing dead chickens uses water. No, make that lots and lots of water. Cleaning each chicken-and removing the contaminants and bacteria that the U.S. Department of Agriculture requires-uses about 10 gallons of water. So if you’re a typical chicken plant that processes, say, 200,000 chickens a day, you end up using 2 million gallons of water a day. Using that much water puts ...


    By Zentox Corporation

  • Fluid waste management and disposal practices

    Prior to the early 80s and the introduction of AIDS into our society, infection control practices were designed almost exclusively to protect the patient from developing a nosocomial infection an infection acquired after admission to the hospital. Protocols were focused on protecting the patient, with little or no emphasis on the health care workers potential to become infected. Hepatitis B has ...

  • The Hazards of Being in a Beauty Salon

    There are many health risks associated with the beauty industry due to the chemicals found in the products. We are all affected by these chemicals every time we go to the beauty salon. Many of the products found in these salons are classified as hazardous and extreme caution should be taken into consideration when using these products. They’re made for professional use only; therefore, ...

  • Controlling Bacteria In a Clean Room Environment

    Maintaining the integrity of a cleanroom is a constant battle. The first step to deciding which method, or combination of methods, to employ is to identify the prime sources of contamination. There are three prime sources of contamination through which the integrity of a cleanroom might be breached. First, there is the human element. While many processes might be automated, many situations remain ...


    By GVS Filter Technology

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