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Showing 11-20 of 343 results

The Effect of High-efficiency and Standard Vacuum Cleaners on Mite, Cat and Dog Allergen Levels and Clinical Progress (63)

December 22, 2011

Abstract The major triggers for allergic asthma are exposure to allergens of the house dust mite, Dermatophagoides pteronyssinus, and of pets. Unfortunately studies of techniques designed to reduce house dust mite and pet allergens have had mixed results. However, new so-called ‘improved’ products continue to …

Stability and Bactericidal Activity of Chlorine Solutions (65)

November 23, 2011

Abstract                To determine the stability of sodium hypochlorite (diluted household bleach) when stored for 30 days in various types of containers and to determine the efficacy of low concentrations of free available chlorine to inactivate test bacteria.   Design Laboratory-based study. Solutions of standard …

Investigation of Antibiotic and Antibacterial Susceptibility and Resistance in Staphylococcus from the Skin of Users and Non-Users of Antibacterial Wash Products in Home Environments (66)

October 27, 2011

Abstract Background   Antibacterial wash products have come under scrutiny as potential contributors to the problem of antibiotic resistance. This study investigated the extent of, and relationship between, antibiotic and antibacterial resistance in human skin bacteria isolated from individuals in the home environment, relative to …

Environmental Decontamination of a Hospital Isolation Room using High-intensity Narrow-spectrum Light (67)

September 1, 2011

Abstract The performance of a new decontamination technology, referred to as ‘high-intensity narrow-spectrum light environmental decontamination system’ (HINS-light EDS) was evaluated by a series of three studies carried out in a hospital isolation room used to treat burns patients. The ceiling-mounted HINS-light EDS emits high-intensity …

Reduction in the Microbial Load on High-Touch Surfaces in Hospital Rooms by Treatment with a Portable Saturated Steam Vapor Disinfection System (68)

August 22, 2011

Abstract Recent scientific literature suggests that portable steam vapor systems are capable of rapid, chemical-free surface disinfection in controlled laboratory studies. This study evaluated the efficacy of a portable steam vapor system in a hospital setting. Methods  The study was carried out in 8 occupied …

Evaluation of a Pulsed-Xenon Ultraviolet Room Disinfection Device for Impact on Hospital Operations and Microbial Reduction (69)

August 18, 2011

This study evaluated the use of pulsed-xenon ultraviolet (PX-UV) room disinfection by sampling frequently touched surfaces in vancomycin-resistant enterococci (VRE) isolation rooms. The PX-UV system showed a statistically significant reduction in microbial load and eliminated VRE on sampled surfaces when using a 12-minute multiposition treatment …

N95 Respirators (169)

April 27, 2009

Surgical masks and surgical N95 respirators are disposable devices that cover the mouth and nose during medical procedures. They help protect the caregiver and patient against microorganisms, body fluids, and small particles in the air. Surgical masks and surgical N95 respirators are regulated by the …

Bioaerosols (186)

December 13, 2008

Throughout written history, the most devastating pandemic illnesses (i.e., pneumonic plague, small pox, inhalation anthrax, tuberculosis, influenza and even chicken pox) were largely spread through the airborne route. These diseases were responsible for more deaths than any wars or other natural disasters. The ever-increasing urbanization …

The Science and Technology of ATP (195)

October 10, 2008

ATP is the primary energy transfer molecule present in all living biological cells on Earth. ATP cannot be produced or maintained by anything but a living organism, and as such, its measurement is a direct indication of biological activity. For hygiene testing the total ATP …

Learning from B.F. Skinner (215)

March 28, 2008

On the opening leaf of his seminal text on Ecology, Eugene Pleasants Odum wrote: Big fleas have little fleas Upon their backs to bite ’em, And little fleas have lesser fleas, and so, ad infinitum. This little Dutch proverb tells us that there is no …