Yeah if $100 can save you even just 3 filter replacements, that sounds like a good investment. Maybe I should do this myself. For now, I will just hope motor sound + my intuition/tacit knowledge of air purifier air flow is enough for me to realize when a filter definitely needs replacing. Thanks Jesse!
Yeah if $100 can save you even just 3 filter replacements, that sounds like a good investment. Maybe I should do this myself. For now, I will just hope motor sound + my intuition/tacit knowledge of air purifier air flow is enough for me to realize when a filter definitely needs replacing. Thanks Jesse!