air filtration

via University of Birmingham
Air filters which can kill bacteria, fungi and viruses including SARS-CoV-2 in seconds
via University of Birmingham Air filters which can kill bacteria, fungi and viruses including SARS-CoV-2
A highly efficient, durable filter for reusable masks and air cleaners using copper foam
A copper-based foam filter that could someday be used in facemasks or air cleaners sits