Face Mask Respiratory Resistance Tester (GB)

A. Applicable Standards:

GB 2626-2019: Respiratory protection—Non-powered air-purifying particle respirator, section 6.5, 6.6

GB/T 32610-2016: Technical specification of daily protective mask

B. Testing Principles:

1.     The tester is composed of an air source with an adjustable flow rate, a standard human head model, an inspiratory and expiratory circuit system, and a respiratory resistance measurement system.

2.     A special air path conversion element is adopted to ensure that the inspiratory and expiratory circuit system are easy to be replaced.

3.     Digital display of respiratory resistance with zero point correction, accuracy correction, and over-range alert function.

4.     A standard flow meter is adopted to ensure flow control accuracy.

5.     Computer control and data acquisition system provide real-time detection and output of pressure control, breathing frequency control, and respiratory resistance test data.

C. Technical Parameters

1.     Flow Rate: (85±1)L/min, 0.1L/min, better than ±2.5%

2.    Head Model：L/M/S (New Standard)

3.     Pressure Range: 1500Pa±0.1Pa, better than 1%

4.     Data Storage: 500 Sets

5.     Dimensions: (W×D×H) (600*600*750)mm

6.     Weight: about 35kg

7.     Power Dissipation: 1.3w

8.     AC220/50HZ