As with the humidity levels, Ordinarily people on O2 have tough periods in HUMID/SMOGGY conditions and less in the dry situations. The sole 'dilemma' I have is equilibrium upstairs/downstairs with one particular zone/compressor. So I have a (quite economical DC motor) ceiling admirer in my stairwell To combine the two https://dukey593bwp0.wikistatement.com/user