Facing the epidemic, how should we choose the most effective Channel Disinfection Machine?

The regular brand Channel Disinfection Machines on the market are basically effective in killing viruses, and the core is the level of the filter. The diameter of the coronavirus is about 0.1 microns, and they are generally attached to small particles (including aerosols) and float in the air. Particles with a diameter of 0.3 microns are the particles that can penetrate the filter most easily (smaller particles will be directly absorbed on the filter fibers). If the particles of 0.3 microns can be filtered out, it means that the purifier can kill the virus. The highest filtration efficiency. N95 masks can filter more than 95% of 0.3 micro-particles, before they are listed as the first choice for epidemic prevention. Generally, as long as the filter of the purifier reaches the H11 level or above, its filtering effect on 0.3 micro-particles (PM0.3) Above 95%, it is theoretically equivalent to the filtering and interception effect of an N95 mask.