Yes, below explained the Cambridge Mask Filter Material Testing:
Our Masks pass the >99% requirement set for the European classification EN 149/FFP3 and the US classification 42 CFR 84, subpart K/N99, for the solid aerosol tests.
Due to the further prerequisite of EN 149 in regards to liquid aerosol test (not required for N classification), our masks receive a mean of PFE of 97% - this equates to FFP2.
Cambridge Mask test results:
Particle Filtration Efficiency >98%
Breathing resistance <2 mbar
Bacterial Filtration Efficiency >99%
Viral Filtration Efficiency >99%
Mask Fit and In-use PFE:
The EN 149 (FFP) also requires a series of activities conducted by individuals to test the mask fit and in-use PFE – whereas the 42 CFR 84, subpart K (N) only requires for it to not interfere with common industrial safety corrective spectacles.
If you combine the testing for filter material and the additional tests for mask fit and in-use PFE, more stringent for an FFP when compared to the N classification, our masks meet the performance requirements for our FFP2 CE Mark whilst also meeting requirements for the EN 149/FFP3 and the US classification 42 CFR 84, subpart K/N99m, for solid aerosol testing.
The FFP and N classifications cannot be compared like-for-like due to the different test requirements.
We have our test results published and you may check it here.
If you have further question, please contact us by email to firstname.lastname@example.org or Chat button on our sites to connect with our Customer Service Team