This comparative review evaluates magnesium oxide antibacterial panel against rock‑wool and PU sandwich panels for medical, pharmaceutical and electronic clean‑room projects. It compares fire rating, antibacterial performance, moisture resistance and project cost, and gives scenario‑based material‑selection advice. SAMZOON, a Foshan‑based original manufacturer, offers custom magnesium oxide antibacterial panel, free samples and technical guidance for South‑China purification projects.