HEPA Filter Types Explained: True HEPA vs H13 vs HEPA-Like —
Walk into any big-box store or scroll through Amazon listings and you will see the word “HEPA” printed on nearly every air purifier box. HEPA filters. True HEPA filters. HEPA-type filters. HEPA-style filters. H13 HEPA. Medical-grade HEPA. The labels multiply because the industry benefits from your confusion — a $35 air purifier with a “HEPA-type” … Read more