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1. Different types of masks
1.1 Face masks
These types of masks, which cover the user's nose and mouth, are used as a physical barrier to fluids and particles with a certain efficiency . They can be classified into three categories.
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Different types of masks
Materials used in masks
Bibliography
Bibliography
Standards and norms
- Respiratory protection devices – Particle filtering half-masks – Requirements, testing, marking - NF EN 149 + A1 - 09/09
- Acoustics – Isosonic level calculation method - ISO 532 - 1975
Regulations
Law no. 83-634 of July 13, 1983 on rights and obligations... (consolidated version of March 3, 2002)
Décret n° 2000-44 du 13 janvier 2000 portant... (consolidated version as of October 5, 2007) JO n° 11 du 14 janvier 2000 page 369 NOR : FPPA9910013D.
Patents
Cerium electrolytic oxidation process and electrolysis unit for its implementation CA2582058.
Patent N202031044170 was filed on December 4, 2020 by Sankha Dey, Sarthak Chatterjee, Saikat Pal, and Dr. Biswarup Neoget. Title: Anti-COVID-19 mask with integrated eye, nose and mouth protection alarm system.
Patent CN111194953 filed May 26, 2020; entitled: The high-temperature anti-virus...
Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
AHG MEDICAL (Atelier de Haute Garonn) https://auriol-masques.fr/
BIOSERENITY https://www.bioserenity.com/
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