Maggs44 said:The problem with units that have a Hepa filter, even units that have a replaceable charcoal outer pre-filter, is that within a year or so you will have to plunk down $40-$50 for a new hepa. I have a Honeywell, I replaced the outer pre-filter every 3 months (at $10 each) and now 18 months later, even with a new charcoal pre-filter, the filtered air coming out the top smells like smoke.
I don't have a recomended subsitute, just passing on info.
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