EN 137 Full Face Respirator Breathing Resistance Testing
The EN 137:2009 Standard specifies requirements for full face respirators that are designed to be worn by workers who are exposed to respiratory risks. This standard ensures the safety and protection of personnel working in hazardous environments, where breathing air quality may not meet acceptable levels.
The primary focus of this testing is on determining the breathing resistance of full face respirators during use. Breathing resistance refers to the pressure difference between the inside and outside of the mask while a person inhales or exhales, measured in Pascals (Pa). High breathing resistance can lead to discomfort and reduced wearer compliance, which ultimately impacts safety.
The testing procedure involves simulating real-world conditions that workers might encounter. This includes varying levels of air flow and pressure differences across the respirator's filter elements during both inhalation and exhalation. The test aims to ensure that the respirator provides a comfortable fit while maintaining an acceptable level of breathing resistance.
The equipment used for this testing typically includes a respirator breathability tester, which is designed specifically to measure breathing resistance in accordance with EN 137. The tester simulates the conditions that would be experienced by the wearer, thereby providing accurate and reliable results.
Before conducting the test, the respirators are prepared according to the manufacturer's specifications. This usually involves cleaning the respirator, ensuring it is free from any dirt or debris, and verifying its integrity. The facepiece must also fit correctly to ensure consistent measurement of breathing resistance.
The testing process itself involves placing the respirator on a manikin that simulates human breathing characteristics. Air is then passed through the filter elements at various flow rates, which are representative of different work environments (e.g., low, medium, and high air quality conditions). The pressure difference across the filter element during inhalation and exhalation is measured in real-time using the breathability tester.
The results from this testing are critical for ensuring that the respirator meets the performance requirements set forth by EN 137. Compliance with these standards helps to protect workers by reducing the risk of respiratory hazards, thereby enhancing overall occupational safety and health.
| Test Parameter | Description |
|---|---|
| Breathing Resistance | The pressure difference between the inside and outside of the mask during inhalation and exhalation. |
| Air Flow Rates | Varying flow rates to simulate real-world conditions. |
| Pressure Difference Measurement | Precise measurement using a breathability tester. |
The results from this testing are typically presented in a report that includes the measured breathing resistance values under different air flow rates. These reports can be used by quality managers, compliance officers, and R&D engineers to make informed decisions regarding respirator selection, design modifications, or production adjustments.
Why It Matters
The importance of breathing resistance testing cannot be overstated in the context of occupational safety. Breathing resistance directly impacts the comfort and usability of respirators, which are critical pieces of personal protective equipment (PPE). High breathing resistance can lead to discomfort for workers, reducing their willingness to wear the respirator consistently.
Incorporating this testing into a broader quality management system ensures that respirators not only meet regulatory standards but also provide optimal performance in real-world scenarios. This is particularly important given that many workers may be required to spend extended periods wearing these devices in various environments, from construction sites to chemical plants.
From the perspective of compliance officers, ensuring compliance with EN 137 helps organizations avoid potential fines and legal issues related to occupational health and safety. Additionally, demonstrating a commitment to worker safety can enhance an organization's reputation and contribute positively to its sustainability goals.
R&D engineers benefit from this testing as it provides valuable data that can be used to improve respirator design and functionality. By understanding the breathing resistance characteristics of different filter types and configurations, they can optimize the product for a wide range of applications and environments.
For procurement teams, ensuring compliance with EN 137 is essential in selecting reliable suppliers who provide high-quality respirators that meet both regulatory requirements and performance expectations. This testing helps ensure that the chosen respirators are not only safe but also comfortable and effective for their intended use.
Applied Standards
The EN 137:2009 Standard is widely recognized as a key document in the field of occupational safety and protective equipment testing. It specifies the requirements for full face respirators, which are designed to protect workers from inhaling harmful substances or contaminated air.
| Applied Standards | Description |
|---|---|
| EN 137:2009 | European Standard for full face respirators, focusing on breathing resistance and other performance criteria. |
| ISO 16518-4:2012 | International standard that provides guidance on the design, manufacture, and testing of respirators, including those covered by EN 137. |
| ASTM F2109 | American standard for full facepiece respiratory protection, which aligns with many aspects of EN 137. |
The application of these standards ensures that the testing and certification process is consistent across different regions, thereby providing a harmonized approach to occupational safety. Compliance with these standards can also facilitate international trade by ensuring compatibility between products from various countries.
Customer Impact and Satisfaction
- Increased Comfort for Workers: Lower breathing resistance leads to more comfortable respirators, which enhances worker satisfaction and compliance with PPE usage.
- Better Protection: Ensured performance according to the standard minimizes risks associated with inhaling harmful substances or contaminated air.
- Enhanced Reputation: Demonstrating compliance with recognized standards can improve an organization's reputation in the industry and among stakeholders.
- Cost Efficiency: By ensuring that respirators meet performance requirements, organizations can avoid costly rework or product recalls.
Clients who invest in this testing not only benefit from improved occupational safety but also contribute to a healthier work environment. This ultimately leads to higher productivity and better overall organizational performance.
