The market taxonomy of Portable Air Purifiers for Home Use by type classifies devices into HEPA‑based, ionizer, UV‑C, activated‑carbon, and hybrid systems. HEPA‑based units dominate the segment due to their proven 99.97% capture efficiency for particles ≥0.3 µm, aligning with regulatory standards and consumer safety expectations. Ionizers, comprising approximately 15% of the market, generate charged particles to agglomerate pollutants but raise concerns over ozone by‑product levels, limiting their adoption in health‑sensitive applications. UV‑C models, representing around 10%, integrate germicidal light to inactivate microorganisms, offering a niche advantage for households prioritizing pathogen control. Activated‑carbon purifiers, about 20%, target VOCs and odors through adsorption, often paired with HEPA filters in dual‑stage designs. Hybrid systems, the fastest‑growing at 25%, combine two or more technologies—typically HEPA plus carbon or UV‑C—to address multiple pollutant classes, reflecting a consumer shift toward comprehensive indoor‑air solutions. This typology clarifies how technology choices influence unit cost, performance metrics, and market share.