- Are you worried about aerosol particle? Are you afraid of getting infected with COVID-19 during treatment? Our products absorb all of the aerosols. so there is no need to worry about it. Our product has a ULPA filter, and the aerosol absorption rate is 99.998%, and this effect can even clean the air. Also, the biggest difference from other products is that there is no noise. If you think that one of the reasons you are usually reluctant to use a dust collector is that it is noisy and interferes with it, the absence of noise will be a great help in medical treatment. Reduce your risks! Filter away aerosol and droplets while your work! Keep clean environment!