@FinchTH @RidleyDM @jvmlost @coolpix_jpg @cre8iverenewal I'm not sure how they got to 6 but you can certainly get from 6 to 10 by adding portable air cleaners, even not particularly loud ones, don't even need UV. But UV is probably better, in some sense.
@FinchTH@RidleyDM@jvmlost@coolpix\u jpg@cre8iverenewal我不确定他们是如何达到6的，但通过添加便携式空气滤清器，你当然可以从6到10，即使不是特别响亮的，甚至不需要紫外线。但在某种意义上，紫外线可能更好。