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Bulgarian Company Invents A Way Masks To Have Unlimited Life

eng. Krasen Dimitrov show the technology with cold plasma in his office in Varna, Bulgaria. A Bulgarian company produces FFP4 type masks that can be reused with either electricity or a battery. The mask is most effective in combating coronavirus, with the highest percentage of filtered air - 98%. Due to the limited amount of FFP4 type masks, Bulgarian Krasen Dimitrov invents a way for the mask to have an unlimited life and to meet without being replaced by the battery. His company, Mamel, already has patented devices that are made on the principle of cold plasma, which within 5 to 20 minutes can sterilize various objects. One of the sterilization devices is for bee hives. When treated with it 5, 6 times a year for 20 minutes on the hive has been shown to increase the productivity of bees by 30%. The companies have developed services for the sterilization of large public spaces such as subway stations, hospitals, real estate and urban transport and are also used with cold plasma for domestic use. Krasen Dimitrov has already donated from his sterilizers to a hospital in the town of Gabrovo, which has disappeared a case of a coronavirus in Bulgaria, Varna, Bulgaria on March 25, 2020 (Photo by Hristo Rusev/NurPhoto)

Photo Details

Photo ID	#5580966
Date Taken	25 March 2020
Location	N/A
Photographer	Hristo Rusev/NurPhoto
Category	Health
Copyright	© 2026 NurPhoto - Hristo Rusev/NurPhoto

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NurPhoto Covid Covid19 Covid-19 health Social Issue Health Emergency Coronavirus Epidemy 2020 Covid Emergency Disease Infection Covid2020 Covid-19 Worldwide Emergency Health Issue Crisis Epidemic Epidemy Asiatic Asia Infections Coronavirus SARS-CoV-2 SARS Quarantine Coronavirus Quarantine Pandemic Pandemy Covid-19 Emergency Bulgarian Company Invents Way Masks Unlimited Life Varna bulgaria

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