HEPA Means “substantial-efficiency particulate air.” The filter technological know-how is the result of an industrial need that turned important during the Atomic Age: high volumes of really clean air, vital with the creation of microprocessors and also other sensitive instruments. ฝุ่นละออง, เชื้อรา, ละอองเกสร และแบคทีเรีย Corbat endorses getting air purifiers tested waiting for link from Social Network Posts (28)