AIYOH!!!!
THIS BESTEREST OF ALL. Full bio-hazard masks with attached canister filters cannot match.
Stupid infantile discussions .
All needed will be a good Fu
To be doubly safe if you kiasu, use 2 fu
And use cowdung to stick the fu to your forehead for lagi even more protection.
Very chun chun
Betterer than googles and N95 and full bio-hazard masks with attached canister filters.