The Austin Air FR450B Standard Plus Healthmate Plus Filter in Sandstone is a portable air purifier with HEPA-Type filtration technology and a pre-filter. It has a metal construction and features a dial and touch control style. This filter captures allergens, cough and sneeze debris, dust, candle soot, diesel soot, bacteria, debris, and chemicals. With a voltage of 120V and three speeds, it operates quietly and includes a fan function for added convenience. Its washable/reusable filter life ensures long-lasting use, making it a reliable and efficient choice for improving indoor air quality.