【Scope of application】 This instrument is used for respiratory resistance testing, and its test method complies with GB2626-2019 standard, which has the advantages of accurate test data, stability, and easy operation. 【Relevant Standards】

(1) GB 2626-2019 Respiratory protective equipment – Self-priming filter anti-particulate matter respirator 6.5 6.6 (2) GB/T 32610-2016 Technical specification for daily protective masks (3) GB 2890-2009 Respiratory protection – Self-priming filter gas mask 6.9

【Scope of application】: This instrument is used for respiratory resistance testing, and its test method complies with GB2626-2019 standard, which has the advantages of accurate test data, stability, and easy operation. [Meet the standard]: (1) GB 2626-2019 Respiratory protective equipment – Self-priming filtration anti-particulate matter respirators 6.5 6.6 (2) GB/T 32610-2016 Technical specification for daily protective masks (3) GB 2890-2009 Respiratory protection – Self-priming filter gas mask 6.9 【Technical Parameters】: (1) Resistance measurement range: – 1000~+1000Pa. (2) Resistance measurement error: ±0.05%. (3) Test flow adjustment range: 10~200L/min. (4) Test flow stability range: ±1L/min. (5) Working power supply: AC 220±10% 50Hz. (6) The use temperature of the instrument is 20°C±2°C, and the relative humidity is 65±10%. (7) The instrument can work continuously for 24 hours. (8) Volume 530×400×800 mm. (9) Weight 80 kg.