... ,Western UnionDetailed Product Descriptionadopt HEPA filter net, Two-layer photo catalyst net, UV lamp, active carbon filter net, negative ions ... composed of filter net, HEPA filter net,Two-layer photo catalyst net, UV lamp, active carbon filter net, negative ions ... refraining and killing bacterium. HM-8188adopts Solar coat ultra-photo catalyst imported from Korea and our product is a new generationof ...