TRANSMISSION OF COVID-19 VIRUS BY DROPLETS AND AEROSOLS: A CRITICAL REVIEW ON THE UNRESOLVED DICHOTOMY

The practice of social distancing and wearing masks has been popular worldwide in combating the contraction of COVID-19. Undeniably, although such practices help control the COVID-19 pandemic to a greater extent, the complete control of virus-laden droplet and aerosol transmission by such practices is poorly understood. This review paper cited intends to outline the literature […]

WHAT IS THE EPA DOING TO APPROVE LONG LASTING DISINFECTION ANTIMICROBIALS?

A standard EPA-approved method does not currently exist for testing long-lasting efficacy (ability to kill or eliminate the target pathogen) against viruses on surfaces.  The EPA developed  a new standardized approach  to achieve the objective of this  by combining elements of ASTM 2197-17, ASTM 1053, and EPA’s “Protocol for the Evaluation of Bactericidal Activity of […]

Aerosol 101

Are Aerosols dangerous? • The air we breathe always contains solid particles or droplets and is therefore an aerosol • These aerosol particles can be from natural sources or man-made sources • Sometimes the particles are of type that, at sufficient concentration, are toxic to our body. • The organ in our body most sensitive […]

How High-Density Cationic Surfaces Kill Bacterial Cells

Rational controlled synthesis of poly (quaternary ammonium) compounds has been used to prepare antimicrobial polymer brushes on inorganic surfaces. The systematic variation of several structural parameters of the polymeric brushes allowed us to elicit the minimum surface requirements and a probable mechanism of action for Escherichia coli cell kill. Polymeric brushes were prepared by surfaceinitiated […]

Using Electrostatic Sprayers with Disinfectants

Electrostatic sprayers have been used in the agricultural and paint markets for years, and are designed to convert liquids into uniform-sized droplets and then apply a “charge” to each droplet as it leaves the spray nozzle of the device. This charge attracts the droplets to untreated surfaces, while repelling these droplets from each other and […]

Foggers vs Electrostatic Sprayers

Electrostatic Sprayers, Fine Misting and ULV Foggers Which to Use When, Where and with What Products There are three popular portable equipment mechanisms being used in janitorial services for the delivery of products designed to improve surface hygiene: • Handheld/Backpack Electrostatic Sprayers (Emist, Victory and Protexus) • Insitu Fine Misting/Fogging Whole Room Systems (HaloMist) • […]
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