y testing agencies.
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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.

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