Respiratory resistance tester features and test methods

The respiratory resistance tester is a medical device used to determine the inspiratory resistance and expiratory resistance of respirators and mask-type protective equipment under specified conditions. It is suitable for testing and inspection of common masks, dust masks, medical masks and anti-haze masks by labour protective equipment inspection agencies and mask manufacturers, and can be used by manufacturing enterprises, scientific research units and third party testing agencies.

8 features of the breathing resistance tester:

1、High definition LCD liquid crystal display.

2、High-precision imported digital differential pressure meter.

3、High precision imported digital flow meter with high precision flow control.

4、The tester can be set in two modes of expiratory testing and inspiratory testing.

5、The respirator pipeline automatic switching device, solving the problem of testers pulling out the tube and mistakenly taking over the pipeline when testing.

6. Self-cleaning air source filtration device is used, the whole process of silent mode, without external air compressor or air pump.

7. High precision digital flow sensor measurement, with a very small initial flow rate.

8. Micro piezometer sensor range, zero point external continuously adjustable, damping adjustable, no mechanical movable parts, high accuracy.

Test method of respiratory resistance tester Test method:

Above the instrument is a head mould. The tester puts the mask on the face of the model, fastens the nose clip and fits the face and chin. The apparatus is then activated to simulate human breathing. After testing, a string of data appears on the instrument. The inspector compares the data with the standard data to find out if the breathing resistance of the mask is acceptable and then issues a test report.