Mask only doesn't defeat the virus completely but it can protect oneself to some high extend depending upon its manufacturing and quality. On a serious note, physical, Social distancing is also very necessary.
Can masks protect against - the new Coronavirus infection?
Which mask is the safest?
N95 Mask
This mask is believed to suppress the virus to 95% and bacteria to 100% as per the specialists. Putting the mask on along with the face shield keeps the virus away.
The surgical mask is be said to defeat the virus to 95% and bacteria, dust, and pollen to 80%. The specialists state surgical masks to not be as effective as N95 masks.
This mask is largely manufactured for attraction purposes. This mask prevents transmission to 0.5% only.
A cloth mask also doesn't prevent the virus. Its capacity measures to zero. But this can protect oneself from bacteria, dust, and pollen to 80%.