Test items: Quantitative tightness test of respirators such as masks The DRK313 mask fit tester can quickly complete the fit test of respirators such as masks to ensure that it provides good protection performance. DRK313 Mask Fit Tester Comply with the Chinese respirator standard GB2626-2019, OSHA/CSA standards and the "GB 19083-2010 Technical Requirements for Medical Protective Masks" jointly issued by the General Administration of Quality Supervision, Inspection and Quarantine of China and the National Standardization Administration of China, and the tightness (fitness inspection) ): The mask design should provide good adhesion, and the total fit factor of the mask should not be less than 100. This test requirement was formally implemented on August 1, 2011. DRK313 Mask Fit Tester Using CNC technology, it is suitable for 100/99/P3/HEPA series of masks for disposable filter masks (including N95/N90/KN95 and other disposable dust masks), gas masks/respiratory masks, half-masks, full-face masks Fit test, independent or computer control, switch display in five languages, with multiple communication ports (USB, Ethernet), WIFI can also be enabled, one computer can control four instruments at the same time. Concentration range: 0~100,000/cm3 Grain diameter: 0.02~1.0μm Flow rate: sampling flow rate: 100cm3/min total flow rate: 700cm3/min Coefficient of fit test: direct test (Cout/Cin) Alcohol: 99.5% + isopropanol (analytical pure) Display: 7inch true color touch screen Communication interface: USB×3 (Host×2, Device×1) Ethernet interface×1 Connection port: environmental port, sampling port WIFI: equipped Languages: English, French, Spanish, Portuguese, Chinese Flow control: sensor control PC controllable operation: one computer can control 4 instruments at the same time Data output format: Microsoft Excel Working temperature: 15~35℃ Power source: AC 110~240V 50/60Hz Appearance size: 208×117×262mm Weight: 2.1kg Accessories: Reagent bottle for alcohol, protective cover, reagent stick, zero count filter, filter screen, sampling tube, instruction manual, AC adapter, touch screen pen, optional computer Optional: Fitting coefficient test kit DRK313 Mask Fit Tester: • Quantitative fit test for respirators such as masks (QNFT) • Applicable to 100/99/P3/HEPA series of disposable filter masks for tightness testing (including N95/N90/KN95 and other disposable dust masks) • Fit test of half face mask and full face mask • Test of the tightness of the gas mask • PAPR mask fit test • SCBA respirator mask fit test • 7inch true color touch screen • Standalone or computer controlled • Using CNC technology • English, French, Spanish, Portuguese, Chinese language switch display • Conforms to American OSHA standards, Canadian Standards Association (CSA) guidelines, including N95 • Equipped with a variety of communication interfaces (USB, Ethernet), and WIFI can also be enabled • One computer can control four instruments at the same time In order to prevent infection at the medical site, and during labor operations, workers must be protected from inhalable hazardous substances in the workplace, and respirators such as masks must be worn during operations. Combine your facial features to choose respirators such as respirators, and evaluate the closeness between respirators such as respirators and the face to check whether there are gaps or leaks that put workers at risk. The mask fit tester can quickly complete the fit test of respirators such as masks to ensure that it provides good protection performance. Safety experts will also formulate protection schemes and standards and regulations based on the results of the tightness experiment. It is widely used in hospitals, manufacturing plants, production sites, fire-fighting workplaces, and other official inspection agencies.