Offered by one of my old friends and previous employer.
SonoMask is a mouth mask developed by the technology company Sonovia from Israel, in collaboration with Bar-Ilan University. SonoMask works by means of nanotechnology that not only stops the virus particles, but also destroys bacteria, fungi and viruses. The SonoMask has also been specifically tested for Covid-19.
According to independent research, the SonoMask offers up to 99.35% protection against Covid-19 and 99.99% protection against bacteria.
Temporary promotion price: a SonoMask mouth cap now for € 42,00.