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Shenyang Baoerfu Technology Co., Ltd is mainly engaged in the research and development of the positive-pressure respiratory protection systems. As a result of unremitting efforts for many years, a series of portable powered air purifying respirators have been manufactured, which have filled the domestic vacancy, and many of them have been patented nationally. Our products has passed test accord with EN12941 and EN12942 and gained CE certificate. Tested by National Lab...