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The FDA fired off a warning letter to Purell's parent company, Gojo Industries, over their marketing claims that the hand sanitizer could kill viruses such as the flu and Ebola.
“Hand sanitizers contain chemicals that inactivate many viruses and are extremely convenient to use,” says infectious disease expert Amesh A. Adalja, M.D., senior scholar at the Johns Hopkins ...
Purell is an American brand of hand sanitizer invented in 1988, and introduced to the consumer market in 1997, by GOJO Industries. [1] Its primary component is ethyl alcohol (70% v/v ), and is used by wetting one's hands thoroughly with the product, then briskly rubbing one's hands together until dry.
Isopropyl alcohol will kill 99.99% or more of all non-spore forming bacteria in less than 30 seconds, both in the laboratory and on human skin. [26] [32] In too low quantities (0.3 ml) or concentrations (below 60%), the alcohol in hand sanitizers may not have the 10–15 seconds exposure time required to denature proteins and lyse cells. [4]
Killing coronavirus: U.S. Environmental Protection Agency has released a list of disinfectants and wipes to protect against spread of the coronavirus.
According to the Centers for Disease Control and Prevention (CDC), a virucide is "An agent that kills viruses to make them noninfective." [12] According to a definition by Robert Koch Institute Germany and further institutions, [13] virucide means effective against enveloped and non-enveloped viruses. [14] [15] [9]
The company that makes Purell has "dramatically increased production" as concern about the coronavirus has skyrocketed hand sanitizer demand. Purell makers say they have 'dramatically increased ...
Dosages for a 90% kill rate of most bacteria and viruses range between 2,000 and 8,000 μJ/cm 2. Larger parasites such as Cryptosporidium require a lower dose for inactivation. As a result, US EPA has accepted UV disinfection as a method for drinking water plants to obtain Cryptosporidium , Giardia or virus inactivation credits.