4.3.2 fortnightly internal response systems are cleaned, first with a damp cloth to wipe the inside with a dry cloth for thorough cleaning. 4.4 Replacement 4.4.1 Efficient filter efficient filter replacement, should be installed in and around the four frame filter clean with a damp cloth to wipe clean the filter SP and DP filter to be repeated three times, wipe immediately after installation of high efficiency filter. Efficient filter should be at the scene unpacking, and passing the examination immediately after the installation, to prevent dust from falling into the highly efficient filter. Number of particulates 4.4.2 Replace 4.4.2.1 detection cleanroom conditions significantly exceeded .. 4.4.2.2 efficient filters at the beginning of the final amount of wind drops below 70% of the amount of wind. Direct filtration process is simple, good ventilation, precision uniform and stable demister filter, no leakage, good regeneration properties, recycled fast, easy installation, high efficiency, long service life. Stainless steel filter does not produce corrosion, pitting, corrosion or wear. Direct filtration process is simple, good ventilation, precision uniform and stable, does not leak, good regeneration properties, recycled fast, easy installation, high efficiency, long service life. Stainless steel filter does not produce corrosion, pitting, corrosion or wear. DP filter _ Dandi (certified) _ Xin-wide filter filter plant from Anping available. Anping Xin filter plant (www.apchumoqi.com) (www.apchumoqi.com) Hebei Hengshui, filters, filtration equipment leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Xin-wide leader in the filter with the staff warmly welcome all inquiries negotiations to create the whole Xin filter better future.