RE: Q?: 7 hour Virucidal mask as test cannot go beyond that time3 Dec 2020 17:36
Liquid1. A good question for discussion. My opinion is that Boris advised the vaccine is not mandatory. Also the vaccine developers cannot confirm that those vaccinated cannot pass on the virus. So 7 hours is a pretty good starter imo. I wonder if it's to do with copper reacting with water, as in those who wear it breathing. I have a water purification bottle that needs changing after so many litres. What if, just putting this out there the masks have interchangeable filters. Who knows.