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HST-MRT550 mask breath respiratory airflow resistance tester
ISO22609 ASTM F1862 Medical Face Mask Synthetic Blood Penetration Tester
HST-MET500 Mask Gas Exchange Pressure Difference Tester
HST-MLF112 EN149 mask leakage filtration efficiency testing tester
HST-MTB505 Mask Fabric test Horizontal Vertical Burning Tester
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