37 Plasma Television
37-inch plasma TVs once offered deep blacks, wide viewing angles, and smooth motion. By the mid-2010s, production largely ended as manufacturers shifted to LCD/LED and OLED technologies.
Sharp Air Purifier
Sharp combines True HEPA filtration, activated carbon, and its Plasmacluster ion technology. These purifiers remove common allergens and odors, but claims about sterilizing air or preventing illness depend on model- and study-specific evidence.