Măști de protecție din materiale necomestibile, dar și comestibile

În timpul răspândirii fulgerătoare a coronavirusului, masca este unul dintre cele mai necesare obiecte de protecție.

Măștile medicinale sunt diferite. Sunt cele de o singură folosință, care au trei straturi de protecție a căilor respiratorii: în mijloc e filtru, iar pe părți – câte un strat exterior.

După acestea urmează măștile chirurgicale, care au patru straturi de protecție. Pe lângă cele trei straturi pe care le au măștile de o singură folosință - cele medicinale, cele chirurgicale mai au un trat care protejează pielea feței de lichide.

Acum iată că a mai apărut o categorie de măști, cele artizanale, improvizate. Unii oameni recurg la ele, in extremis.

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A Palestinian mother entertain her children with makeshift masks made of cabbage as she cooks in Beit Lahia in the northern Gaza Strip on April 16, 2020 amid the coronavirus COVID-19 pandemic.

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A Colombian student uses a mask made of recyclable and biodegradable materials, following a shortage of medical masks due to the spread of the new Coronavirus, COVID-19, and the high pollution of the city, at Julio Cesar Turbay school in Soacha near Bogota, on March 11, 2020. - The World Health Organisation (WHO) declared the Coronavirus a pandemic with 118,000 cases in about 120 countries, and 4000 deaths.

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A resident using an improvised face shield made from a plastic water tank to protect him from the COVID-19 coronavirus pandemic walks in his neighbourhood in Manila on April 5, 2020, after the government imposed enhanced quarantine measures in the city.

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Handout photo released by the FENEMAD of members of the Shipibo and Ese'Ejja etnic groups wearing face masks made of leaves as they raise their clenched fists to protest for the lack of support from the government amid the new coronavirus pandemic in Madre de Dios, Peru, in the southern Amazon basin on April 13, 2020. - The president of the Native Federation of the Madre de Dios River (FENAMAD), Julio Cusiriche, reported that the Shipibo, Harambut, Machiguenga, Yine, Kichuaruna, Amahuaca and Ese'Ejja ethnic groups have decided to close their communities to outsiders.

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A photographer wearing an unusual protective mask against coronavirus spread made from a paper bag, in Warsaw, Poland, Sunday, April 19, 2020. The new coronavirus causes mild or moderate symptoms for most people, but for some, especially older adults and people with existing health problems, it can cause more severe illness or death.

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A woman holds paper in her mouth, her alternative to a face mask, as she waits in line for a free lunch from a charity organization that helps the homeless in Lima, Peru, Thursday, March 26, 2020, on the second week of a government decreed state of emergency that restricts residents to their homes to help contain the spread of the new coronavirus.

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A Colombian student poses for a picture wearing a face mask made of recyclable and biodegradable materials, as a form of protest against the shortage of face masks in pharmacies, in order to prevent the spread of the COVID-19 virus, at Julio Cesar Turbay school, in Soacha, Colombia, on March 11, 2020. - The World Health Organisation (WHO) declared the Coronavirus a pandemic with 118,000 cases in about 120 countries, and 4000 deaths. (Photo by Raul ARBOLEDA / AFP)

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Педагог учреждения дополнительного образования "Дом детства и юношества" города Мамадыш республики Татарстан Радик Гурьев в изготовленной им из фанеры многоразовой маске.

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Brazilian fashion photographer Marcio Rodrigues wears a mask made with recyclable bottles, cans and boxes after over 20 days in which these garbage items were not collected because of the quarantine imposed to control the spread of the new coronavirus (COVID-19), in Belo Horizonte, Brazil on April 11, 2020. Marcio Rodrigues will make a suit with recyclable garbage if the quarantine continues.

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A Colombian student poses for a picture wearing a face mask made with recyclable and biodegradable materials that reads "If I breathe, it will contaminate me", as a form of protest against the shortage of face masks in pharmacies, in order to prevent the spread of the COVID-19 virus, at Julio Cesar Turbay school, in Soacha, Colombia, on March 11, 2020. The World Health Organisation (WHO) declared the Coronavirus a pandemic with 118,000 cases in about 120 countries, and 4000 deaths.

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A man wearing a paper-face mask travels on the subway in Mexico City, on April 2, 2020. More than 20,000 cases of COVID-19 were registered in Latin America and the Caribbean by Wednesday -- double the figure from five days ago, according to an AFP tally.

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A man wearing a face mask and a plastic bag on his head rides a bicycle on a street in Wuhan, China's central Hubei province on April 14, 2020. China has largely brought the coronavirus under control within its borders since the outbreak first emerged in the city of Wuhan late last year.

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A man poses with a handmade protective face mask, made out of a paper napkin, in Sceaux, south of Paris, on April 8, 2020 on the 23rd day of a strict lockdown in France to stop the spread of COVID-19 (novel coronavirus). - The mayor of Sceaux issued a decree for the mandatory wearing of a face mask or other type of protection over the mouth and nose for outings of people over 10-years-old.

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A Colombian student uses a mask made of recyclable and biodegradable materials, following a shortage of medical masks due to the spread of the new Coronavirus, COVID-19, and the high pollution of the city, at Julio Cesar Turbay school in Soacha near Bogota, on March 11, 2020. The World Health Organisation (WHO) declared the Coronavirus a pandemic with 118,000 cases in about 120 countries, and 4000 deaths.