Press Release: April 20, 2020
On July 1, 2020, China’s new mandatory national standard for non-powered air purifying respirators – GB 2626-2019 – will come into effect.
Issued by the Standardization Administration of China, GB 2626-2019 Respiratory protection - Non-powered air-purifying particle respirator, applies to respirators that provide protection against particles. It does not apply to respirators that protect against harmful gases and vapor. It is also not suitable for respirations that are used in hypoxic environments, underwater operations, escape and firefighting.
The standard includes technical requirements relating to:
• General requirements
• Appearance check
• Filter efficiency
• Inward leakage performance
• Respiratory resistance
• Exhalation valve
• Dead space
• Visual field
• Head harness
• Connection and connecting parts
• Air tightness
• Cleaning and disinfecting
• Practical performance
Under the new standard, respirator facepieces are classified as:
• Replaceable half-facepiece
The filter element is categorized according to its efficiency, using the following categories:
• Category KN – only used to filter non-oily particles
• Category KP – used to filter oily particles and non-oily particles
The classification is decided by the level of filter efficiency. For both Category KN and Category KP, disposable and replaceable half-facepiece respirators can be classified as level 90, 95, or 100. There is no level 90 for full-facepiece respirators.
Marking under the new standard is related to the structure – disposable, replaceable half, and full-facepiece. They are also class marked in accordance with the code specified in the standard. For example, if the respirator has a KN90 filter element, it should be marked as GB 2626-2019 KN90.
GB 2626-2019 was included in China’s No. 17 announcement on newly approved national standards, issued in 2019. It replaces GB 2626-2006 and contains several important technical differences that manufacturers should consider. Detailed information can be found in Appendix E of the standard.
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