Mask Respiratory Breathing Resistance Tester Working Princip

Before the mask leaves the factory for sale, it has to undergo a series of tests,  and only the test results meet the international or domestic standards can it be approved for sale in the market. The facemask airflow respiratory resistance tester is one of the detection devices.In the test of respiratory resistanc e of mask, the sample to be tested is fixed on the test head die in an airtight manner,  and the large expiratory resistance and inspiratory resistance are measured and recorded after the ventilation rate is adjusted to the specified conditions.

Characteristics of expiratory resistance machine

1. The instrument is composed of a breathing air source with adjustable flow, a human head model specified by the standard, an inspiratory and expiratory pipeline system, and a respiratory resistance measurement system.
2. Special air circuit conversion elements are adopted, which ensures that the expiratory and inspiratory pipeline systems can be replaced conveniently and quickly.
3. Digital display of respiratory resistance, with functions of zero point correction, accuracy correction and over-range alarm.
4. Using electronic flowmeter, the flow control precision is high.



Respiratory Resistance Test machine Technical characteristics

High-definition LCD screen;
Electronic flowmeter with high flow control accuracy;
Automatic constant current control, automatic sample qualification judgment;
Two modes of exhalation detection and inhalation detection can be set.
Large capacity data storage, real-time storage of detection data;
Historical data can be exported through U disk or printed by thermal printer.
Parameters such as pressure difference and sample number can be set;
Automatic protection for fault detection

Qinsun Instruments Co., LTD was founded in 2010,comprised of many experienced engineers and designers standing in the forefront of the industry. Qinsun specialize in the research and development of high quality lab instrument for textile testing industry. Our head office in Shanghai and we provide high quality testing instrument and comprehensive service for textile factory,academic research institute and textile lab worldwide.