Samples of masks with activated charcoal filters made of apricot stones that do not leak viruses of a size similar to coronaviruses were presented by Prof. Pavlinka Dolashka of the Institute of Organic Chemistry with Center for Phytochemistry of BAS at a meeting with the Minister of Economy Emil Karanikolov.
The filters have already been tested at the Virology Laboratory of the Faculty of Biology, Sofia University “St. Kliment Ohridski”. Tests have shown that 50 hours are observed during which the virus cannot pass through the mask. The filter can be used for masks many times, sterilized under steam to be used again, Prof Pavlinka Dolashka explained during the meeting. Филтърът може да се ползва за маски многократно, като се стерилизира под пара, за да бъде използван отново, обясни по време на срещата проф. Павлинка Долашка.
The new protective device was developed by a team of scientists from the Bulgarian Academy of Sciences within the Clean Technologies Competence Center and BioActiveMed National Science Program.
The Minister of Economy highlighted the readiness of Bulgarian scientists and producers with the assistance of the state to start production of these protective materials.