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The reference standard：

GB 2626-2019 Respiratory protection self-priming filter type anti particulate respirator 5.3 filter efficiency
GB/T 32610-2016 Daily protective mask technical specification attached A filtration efficiency test methods
GB 19083-2010 Medical respirator technical requirements 5.4 filtration efficiency
YY 0469-2011 Medical surgical masks 5.6.2 particle filtration efficiency
GB 19082-2009 Medical disposable protective clothing technical requirements 5.7 filtration efficiency
EN1822-3:2012 European standard high efficiency air filter single filter material experiment
EN 149-2001 Respirators European standard
EN14683:2005 Surgical masks the European standards
NIOSH 42 CFR Part84 Respirators American standard

Equipment is introduced：

2929ATO At is the latest research and development of automatic about material tester。

Applied to daily respirator, surgical masks, melt-blown fabric on the particulate filter efficiency testing and determination of the ordinary type of fabric, medical protective mask for a constant flow of air blocking performance.