Particle Protection Effectiveness Test System

Particle protection effect test system can also meet the protection effect test for daily protective masks and children's masks.

 

Technical parameters.

 

1. Aerosol generator.

1) oily particulate media: corn oil aerosol generation gas volume: (10-120) L/min (adjustable), aerosol concentration: (10-30) mg/m3 (adjustable), the concentration change during the test is not more than 10%. Aerodynamic particle size distribution of particulate matter: (0.02-2) μm (adjustable, 95%), mass median particle size: 0.3 μm (adjustable).

2) saline particulate media: sodium chloride aerosol generation gas volume: (10-120) L/min (adjustable), aerosol concentration: (10-30) mg/m3 (adjustable), the concentration change during the test is not greater than 10%. Aerodynamic particle size distribution of particulate matter: (0.02-2) μm (adjustable, 95%), mass median particle size: 0.6 μm (adjustable).

2、Aerosol concentration monitor.

1) environmental compartment, dual access within the mask.

2) Measurement range: (0.001-100) mg/m3. 

3) Measurement accuracy: 1μg/m3/10μg/m3.

4) Gas sampling flow: (1-3) L/min.

5)Sampling frequency: 1s/time, and real-time transmission of monitoring data to PC.

6) equipped with (pm1.0, pm2.5, pm10 cutting head).

 

3、Airbag breathing simulator:

1) respiratory mode: sinusoidal airflow, respiratory rate 20 times/min.

2) Respiratory flow (30±1) L/min adjustable.

3) Respiratory frequency (5-40) times/min, adjustable.

(4) equipped with silicone breathing tube, length ≥ 1 m.

 

4, test bin :

(1) size: ≥ 600mm × 600mm × 560mm

2) main structure: stainless steel.

(3) bin material: tempered glass.

(4) configuration inflow device, turbulent mixing device, exhaust gas filtration device and exhaust device.

 

5、Testing software.

(1) including breathing simulator control software, particle concentration monitor data acquisition software and protection effect test software.

(2) aerosol concentration monitor data, generate average values, and calculate the value of the protection effect.

(3) configuration of the necessary network cable, data exchangers, etc..

 

6、Test head mold.

(1) silicone material, small \ in \ large a total of three, the size of GB/T32610-2016 Appendix B.

(2) head mold surface material hardness Shore hardness (2 ± 2) HA, small \ in \ large a total of 3; size in line with GB/T38880-2020 Appendix A.

(3) set breathing pipeline and particle concentration monitoring pipeline.

 

8, control cabinet body material: aluminum alloy and acrylic.

 

Customers who are interested in purchasing the particulate protection effect test system should leave a message online.