A family in a 1970s ranch house spent three weeks running a popular air purifier — 25,000 five-star Amazon reviews, $180, top of every roundup list — after noticing a musty smell in their master bedroom. The smell got worse. Morning congestion didn’t clear. The mold behind their baseboard heater kept spreading. The purifier wasn’t …

Best Air Purifiers for Mold: What the Specs Actually MeanRead More