HEPA Means “substantial-effectiveness particulate air.” The filter technological innovation is the result of an industrial have to have that turned significant within the Atomic Age: significant volumes of very thoroughly clean air, important for that manufacture of microprocessors as well as other sensitive instruments. บ้านเครื่องฟอกอากาศเครื่องกรองอากาศเครื่องวัดคุณภาพอากาศ The fil... https://www.mannature.com/products/detail/airpurifier