sanqi mask 3q can prevent novel coronavirus, but it depends on the type of 3M mask. Generally speaking, disposable surgical masks and N95 masks can prevent novel coronavirus, so we should choose disposable medical surgical masks and N95 masks when choosing 3M masks.

Because the above two kinds of masks can block about 95% of particles and dust, they can effectively isolate and block diseases spread by droplets. Therefore, the model and type must be clearly recognized when choosing the 3M mask, otherwise other masks may not have the function of preventing novel coronavirus.