Main attributes Instrument classification Level 2 Standard YY/T 0969-2013 Quality certification SGS Disinfection type Non-sterile Material 100% pp, PP Safety standard YY/T 0969-2013 Applicable population Adults Shelf life 2 years Inventory Yes Filtration level 98% Origin Hubei, China Model ZH20190609109 Dimensions 17.5*9.5cm brand name