Mark Zilberman. Adding a Water-repellent Barrier to Low-cost or Home-made Masks and Respirators Using Aerosols that Protect Clothing and Furniture from Spills and Liquids


Natural Sciences / Chemistry / Medicinal chemistry

Submitted on: Apr 14, 2020, 21:55:08

Description: In connection with the COVID-19 pandemic in the spring of 2020, an unprecedented situation has developed with masks and respirators protecting respiratory organs. The purpose of the mask (respirator) is to protect the person from drops of liquid that the COVID-19 carrier spreads around themselves when coughing/sneezing. Unfortunately, low-cost, non-professional and home-made masks and respirators let in a significant amount of droplets. An ideal solution would be to treat a cheap or even a makeshift mask or respirator to make it water-repellent (like a rubber respirator), but to still allow the wearer of the mask the ability to breathe and talk freely. Fortunately, this dilemma was long and successfully solved by manufacturers of products to protect clothes and furniture from spills and liquids. This article describes experiments that tested the ÔEťTana┬« Style 16┬« ProtectorÔEŁ aerosol manufactured by JOHNSON & SON, INC for the installation of a water-repellent barrier on household water-permeable respirators and cotton fabric. The methodology and photographs of the passage of a jet of water through a household mask and cotton fabric are given before and after ÔEťTana┬« Style 16┬« ProtectorÔEŁ aerosol treatment. Aerosols have been shown to be highly effective for installing a water-repellent barrier on water-permeable respirators and cotton fabric. It is understood that other countries may have similar aerosols under different names. The breathing through a water-repellent barrier, as well as possible long-term effects, are discussed.

The Library of Congress (USA) reference page : http://lccn.loc.gov/cn2013300046.

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