Soft Rubber Respirator Production Line

The total inhalation resistance of the respirator should not exceed 350 Pa, and the total exhalation resistance should not exceed 250 Pa. Quantity and requirements of respirator resistance tests: 4 samples, 2 of which are untreated samples, and the other 2 are pretreated samples. If the samples to be tested have different sizes, there should be two samples for each size, one untreated and one pretreated. Instructions: 1. Check the airtightness and working condition of the testing device, adjust the airflow rate to 85±1 L/min, and set the system resistance of the testing device to 0. 2. Wear the sample on a matching test head form, adjust the wearing position of the mask and the tightness of the headband to ensure a tight fit between the mask and the test head form. Then adjust the airflow rate to 85±1 L/min, measure and record the inhalation resistance.