Respiratory resistance detector and particulate matter detector scheme

Description :

　　As is well known, particulate matter refers to particles with an aerodynamic equivalent diameter of less than or equal to 2.5 μ m in the ambient air, also known as fine particulate matter, commonly referred to as PM2.5. And filtration efficiency refers to the ability of a mask body to filter out particulate matter under specified conditions, indicated as a percentage.

　　The mask particle filtration efficiency tester is used to test the percentage of bacterial suspended particles filtered out by mask materials at a specified flow rate. The use of dual gas path simultaneous comparative sampling method improves the accuracy of sampling and is suitable for performance testing of bacterial filtration efficiency of medical surgical masks by metrological verification departments, research institutes, medical mask production enterprises, and other related departments. Mainly used for metrological verification departments, research institutes, medical mask production enterprises, etc.

　　The mask particle filtration efficiency tester is a detection device used to test the filtration performance, protective filtration efficiency, and filtration effect of protective masks. Currently, masks are mainly divided into air filtration masks and air supply masks. This testing instrument is suitable for medical device inspection centers, safety protection inspection centers, labor protection inspection centers, drug inspection centers, disease prevention and control centers, textile testing centers, mask and respirator production enterprises, etc.

　　Mask particle filtration efficiency detector Product details:

　　1. The use of a cold gas aerosol generator produces continuous and stable aerosol particles, making it easy to add the solution;

　　2. Using high-precision PM2.5 sensors to measure aerosol concentration;

　　3. Full process particle leakage prevention design to protect the safety of experimental personnel;

　　4. Two sets of aerosol generators: saline particulate aerosol generator and oily particulate aerosol generator;

　　5. Equipped with a static charge neutralization device for aerosol particles;

　　6. Pneumatic fixture with protective device, safe and convenient to use;

　　7. Configure temperature and humidity sensors to display real-time environmental temperature and humidity (temperature and humidity requirements: 25 ℃± 5 ℃, 30% RH ± 10% RH);

　　8. Configure glass rotor flowmeter, vacuum pump, and laser dust particle counter;

　　9. Control system: computer-controlled testing process, automatic data collection, configuration of computer and testing software;

　　10. Computer automatically tests gas concentration and calculates filtration efficiency; Can save, output, query, and print test data;

　　11. Touch screen control, simple and intuitive operation.

AfterSalesService :

• Respiratory resistance detector