If i was in china i would be using a 3M Respirator than the N95 masks like this
I use this respirator for work and it forms a perfect seal around your face so u wont be breathing in anything airborne through your mouth and nose and also with the Pink P100 Filter, itll last 30 days/40hrs of use compared to the single use N95. Which imo are only useful for u to stop touching yourself in the face. In canada you can find the lower model respirator for like $25 with filter, ive seen them on Ali for as low as $20. Seems to be cheaper yet better alternative. Its something to think about if you dont wanna catch the disease and possibly die.