How about esckn95 mask

At present, there are non-medical masks on the market that claim to be "antibacterial and antiviral". Generally, all kinds of antibacterial agents are added by mixed spraying. The main additives are nano titanium dioxide, nano silver, quaternary ammonium salt, copper ion/copper oxide, traditional Chinese medicine extract and so on.

The safety and effectiveness of such products should be fully studied and verified. In terms of safety, the risk of long-term inhalation of normal people caused by the shedding of antibacterial agents on masks should be evaluated; In terms of effectiveness, whether the addition of antibacterial agents affects the filtering effect of masks and the antibacterial and antiviral effects of antibacterial agents need to be verified.

Medical N95

Medical N95 adds a hydrophobic layer on the basis of particle blocking ability, which can prevent liquid splashing, especially when doctors perform intubation and other operations, which can play a more effective protection role. N95 series masks (N99, 95, 90) have the strongest protection ability, but the air permeability is also poor, and they are easy to lack oxygen after long-term use, so they are suitable for healthy people with high epidemic prevention requirements. We often see that industrial dust masks are sold as medical N95 in the market, and many people are confused.

Under the premise that the clinical effectiveness of this kind of mask products has not been fully verified, adding antibacterial drugs will introduce new risks. At present, in the pre-marketing evaluation of medical devices, the risk-benefit ratio of continuous long-term use of such products is insufficient and has no significant clinical significance.