VK, Virus Killer Mask, blocks and kills Coronavirus, inspired by Professor Hyo Jick Choi theory Alberta University Canada. Easy, and no cost, to make yourself

VK mask :

Very simple to make and no cost

Inspired by Professor Hyo Jick Choi theory (Alberta University Canada)

1/ Wear the usual mask first

2/ Wear the second mask impregnated salt water over the first mask

(4 tablespoons of salt in 200ml of water)