1 / 24

Media-Specific Disinfection

Media-Specific Disinfection. Surfaces and Air. Legal Issues. 1) It is a violation of Federal law to use an EPA registered product in a manner inconsistent with its labeling. Solution strength must be according to label Applications must be on the label

Download Presentation

Media-Specific Disinfection

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Media-Specific Disinfection Surfaces and Air

  2. Legal Issues 1) It is a violation of Federal law to use an EPA registered product in a manner inconsistent with its labeling. • Solution strength must be according to label • Applications must be on the label 2) It is a violation of Federal law for a manufacturer to make real or implied claims for efficacy against organisms which are not on the label. • Creates problems when we encounter: • FMDV • Anthrax • Norwalk • SARS • Avian Influenza H5N1

  3. Surface Disinfection • Surface Disinfection = Inactivation in Place • Surface Cleaning = Removal of Contaminants • Commercial products frequently combine disinfection and cleaning. • Some disinfectants have cleaning properties • Recommendation (at least in clinical settings) clean with disinfectant to avoid spreading contamination Pre-Disinfect  Clean  Disinfect

  4. Surfaces • What surfaces might you need to disinfect? • Household Surfaces • Food and Food Prep Surfaces • Clinical Surfaces • Laboratory • Industrial • Farm • Other???

  5. Concerns for Disinfection of Surfaces • Disinfectant Type/Concentration/Formulation • Contact Time • Type of Organisms/Level of Disinfection • Corrosivity and Other Surface Damage • Toxicity/Residual Toxicity • Other Residues • Odor • Type of Application and Rate

  6. Concerns for Disinfection of Surfaces • pH • Demand and Interfering Substances • Temperature • Water hardness • Soil load • Biofilm presence • Surface microtopography • Precleaning • Relative humidity • Compatibility • Storage of Product/Product age *In practice, the contaminating microorganisms are not usually known.

  7. Clinical/Dental Surface Disinfectants

  8. Farm Surfaces • Virkon S (potassium peroxymonosulfate) • Nolvasan S (chlorhexidine diacetate) • Bleach (sodium hypochlorite) • Spectrasol (quat) • Alcohols (ethanol and Isopropanol, 70-95%) • Roccal D (quats with bis-n-tributylin oxide)

  9. Surface Disinfection • In study by CRA Foundation • 54 clinical surface disinfectants tested against TB and Polio with and without presence of Blood • 7 passed: • Household Chlorox (50:50) • Industrial Chlorox (50:50) • Biosurf • Lysol I.C. • Lysol II Spray • Indi-wipes with Lysol

  10. Ozone Surface Disinfection •   Up to 14 PPM Ozone @ 10GPM •   Onboard Ozone Analyzer With Alarms •   Exclusive Off-Gassing System •   Spray, Mist and Fog Applicators;   Spray Arches Available • Advertises a 3 Log Kill on First Application

  11. UV Surface Disinfection • Conveyor Belts • Food Prep Surfaces • Laboratory and Clinical Surfaces • Sterilization of Packaging • Mail Systems

  12. Cleaning and Disinfection of Floors

  13. Microbial Contamination of Mop Water

  14. Disinfection of Food Surfaces

  15. Chemical disinfection of Indoor Air • Spraying • relatively large particles, which have a higher wetting capacity, but stay in the air for less time • Misting • smaller particles that have increased penetration and uniformity • Fumigation • combination of 2 or more chemicals producing a vaporised form of the disinfectant • Thermal Fogging • similar to misting but involving heating of the disinfectant to produce a fine vapour

  16. Chemical Disinfectants of Air • Chlorine Dioxide • Ozone • VHP • Formaldehyde • Gluteraldehydes • Quat mixtures • Virkon (peroxy compound) • Sporocidin (phenolic)

  17. Air Disinfection • Chemical Disinfection • Spray, mist, fog, fumigation • UVGI • Ionization/Electrostatic Precipitation • Only one that removes • Photocatalytic oxidation

  18. UV Air Disinfection • Forced Air or HVAC Duct Systems • Full Air Systems • Upper Air Systems • Re-circulating Systems • Microbial Growth Control • On Filter Surfaces

  19. UV Air Disinfection: Duct Systems • Integrated in to HVAC System

  20. UV Air Disinfection: Upper Air • Originally designed for TB sanitariums

  21. UV Air Disinfection: MGS

More Related