Mask Air Flow Resistance and Breathing Resistance Tester

Masks are an important piece of personal protective equipment used to protect the respiratory tract from pollutants and particulates. Understanding performance parameters such as airflow resistance and breathing resistance is critical when choosing the right mask. Airflow resistance tester and breathing resistance tester are key equipment used to evaluate the degree of obstruction of airflow by masks when breathing.

 

 

The airflow resistance tester is used to measure the airflow resistance of the mask under a certain flow rate. Airflow resistance refers to the resistance encountered when gas passes through the mask material. This is very important to ensure the comfort and efficiency of breathing while wearing a mask.

working principle:

Airflow resistance testers usually use the principle of micro-differential pressure measurement. During the test, the mask is fixed on the test device, the airflow is applied through one side, and the pressure difference of the airflow is measured on the other side. Through the measured air pressure difference and flow value, the airflow resistance of the mask can be calculated.

 

 

The breathing resistance tester is used to measure how much the mask hinders breathing when actually breathing. Breathing resistance includes the resistance of the mask to air flow during inhalation and exhalation, which is directly related to the comfort and applicability of wearing a mask.

 

working principle:

The breathing resistance tester usually uses the tester to actually breathe on the mask in a simulated breathing state, and then measures the pressure difference between inhalation and exhalation. The tester breathes through the breathing resistance tester connected to the mask, and the instrument measures the pressure difference to calculate the breathing resistance of the mask.

 

 

1. Fix the mask to be tested on the test device to ensure its tightness and stability.

 

2. For the airflow resistance tester, set the required airflow flow, start the test device, measure and record the airflow resistance of the mask under different flow rates.

 

3. For the breathing resistance tester, the tester wears the mask to be tested and breathes according to the predetermined frequency and depth. At the same time, the test instrument measures the pressure difference between inhalation and exhalation, and calculates and records the breathing resistance of the mask.

 

Result analysis:

 

Through the airflow resistance and breathing resistance tests, the degree of obstruction of the mask under different conditions can be obtained. The test results help to evaluate the mask's permeability, breathing comfort and wearer experience, as well as to ensure the mask's compliance and performance meet the specified standards.

 

In the process of mask production, quality control and standard setting, Mask Air Flow Resistance and Breathing Resistance Tester has become an indispensable testing equipment to ensure the quality, performance and reliability of masks to protect the health and safety of wearers.