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We get asked this question - how do you compare masks to powered respirators? It's a good question, because they span different standards and classifications, from TM3, TH3, and FFP3. The best way to compare them is to break the protection each type gives down into a APF or Assigned Protection Factor. An APF factor measures the decrease in concentration of harmful substances inside the mask compared to outside the mask. For example, an APF factor of 10 means that no more than one tenth of the contaminants in an environment to which a worker is exposed will leak into the mask, and likewise an APF protection factor of 100 will mean only one percent will leak through the mask. We're using the UK APF factors, which are 4, 10, 20, 40 and 2000 - but other countries have their own. The table below shows how these compare - i.e. a FFP3 mask and a half face mask with P3 filters both reach a APF of 20. 💡The TH3 CleanAIR powered respiratory system reaches a APF of 40, which is a scale factor more and gives significantly better protection. Note than some powered respirators are TH2 though. For more information, check out this article! ➡️https://lnkd.in/esT8Stbq Was this helpful? Drop a comment below! 👉Get in touch with us for all your PPE needs: sales@mfsafety.co.uk +44 (0)115 9252261 #mfsafety #poweredrespiratory #cleanair #papr #healthandsafety #ppe #rpe #standards

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