Air Permeability & Mask Breathability Tester

Air Permeability & Mask Breathability Tester

MODEL: SM 4308E

Air Permeability and Mask Breathability Tester is a testing instrument for permeability of textiles and pressure difference of face masks.

During the air permeability test, the tested sample is placed in a channel with a fixed cross-sectional area, and a certain pressure difference will be generated between the upper and lower sides of the test sample by a specific air flow. The test software can automatically calculate the air flow through the fabric according to the cross-sectional area of the pressure difference, so as to get the air permeability of the fabric.

During the pressure difference test of face masks, the tested sample is placed in the channel with fixed cross-sectional area. The air flow with specific flow rate will generate a certain pressure difference between the upper and lower sides of the test sample. The test software can automatically calculate the pressure difference between the two sides of the respirator according to the cross-sectional area of the channel, so as to calculate the breathability of the face masks.

The tester includes:

1.The main engine, different cross-sectional area of the test head, vacuum pump, MCU and other components.

2. Automatically control the flow rate or pressure difference of air flow.

3. Automatically calculate the permeability of the test sample.

4. Touch screen display and control, easy to operate.

5. Automatic range selection without manual gear selection.

Testing Scope: Fabrics and Medical Face Masks, etc.

Testing Standards:

Specification:

1. Test pressure range: 10-2500pa;

2. Air flow: 1-225L/min.;

3. Accuracy: 3%;

4. Flow test unit: mm/s, CFM, cm³/cm²/s, L/m²/s, L/DM²/min, m³/m²/min, m³/m²/h and DM³/s;

5. Differential pressure test unit: Pa/cm² 

6. Test head: 20 cm² (standard), 5 cm² (mask), 25 cm², 38 cm², 50 cm², 100 cm² (optional);

6. Sample thickness: 8mm maximum;

7. Calibration disk: Standard for 20 cm? Test head;

Ordering Information：

SM4308E Air Permeability and Mask Breathability Tester

SM4308/1 Silicon Seal Pad

SM4308/2 5cm² Test Head

SM4308/3 25cm² Test Head

SM4308/4 38cm² Test Head

SM4308/5 50 cm² Test Head

SM4308/6 100 cm² Test Head

SM4308/7 20 cm² Test Head（Standard）