Mask Leak Testing Device

The Protective Mask Leakage Tester is a portable device designed to detect the service performance and applicability of protective masks, and provide leaks and service performance testing for specified nuclear, biological and chemical defense (NBCD) / chemical, biological and radiation defense (CBR-D) masks and components without the need for the operator to wear a mask.

Overall Mask Leakage Test : Mask leakage is measured while the mask is challenged with an aerosol, with or without a plugged filter canister attached.

Leakage Isolation Test: Leaks normally invisible to the naked eye are easily isolated so that repair/replacement decisions can be made.

Mask Leak Testing Device Applications

Wind exhaust Valve Test: In the wind exhaust valve test, suspended particles as a function in the mask test and isolation detect the airflow leakage under strictly controlled conditions.

Drink Tube Flow Test: Tube blockage can be measured.

Drink Tube Valve Leakage Test: The drink tube valve is tested for leakage under controlled pressure.

Technical Parameters

Features

(1)High-Sensitivity Leakage Detection

Capable of detecting extremely small leaks using advanced aerosol photometric technology.

(2)No Wear Testing Required

Allows testing without requiring personnel to wear the mask, improving safety and efficiency.

(3)Leak Localization Capability

Quickly identifies leak points to support maintenance and repair decisions.

(4)Multi-Function Testing

Supports mask-level and component-level testing, including valves and tubing systems.

(5)Wide Detection Range

Covers a broad range of leakage levels, suitable for both high-performance and general masks.

(6)Portable Design

Compact and transportable for field testing and laboratory use.

(7)Data Communication

Supports RS-232 output for data recording and integration with external systems.

FAQ

1. What is the difference between overall leakage testing and leakage isolation testing?

Overall testing evaluates the total leakage performance of the mask under aerosol exposure, while isolation testing focuses on locating specific leak points for troubleshooting and maintenance.

2. Why is aerosol used during testing?

Aerosol particles simulate real airborne contaminants and enable precise detection of leakage paths using photometric measurement methods.

3. Can this system detect very small leaks?

Yes. The system uses high-sensitivity photometric detection capable of identifying extremely low leakage levels that are not visible or detectable by conventional methods.

4. Does the test require a person to wear the mask?

No. The system is designed to perform testing without human involvement, reducing safety risks and improving repeatability.

5. How are test results interpreted?

Results are typically expressed as leakage percentage or fit factor. Higher fit factor values indicate better sealing performance and lower leakage.

6. What types of masks can be tested?

It is suitable for high-performance protective masks, including NBC/CBR defense masks and other respirators requiring strict sealing performance verification.

7. How often should the system be calibrated?

Regular calibration is recommended to ensure measurement accuracy, especially for the photometric detection system and aerosol generation components.

8. Can the system be used for routine maintenance checks?

Yes. It is ideal for periodic inspection of masks to identify degradation, leakage, or component failure over time.