Unifilter 384 100u PSC GF/C, 50/PAK

Any filter manufacturer or vendor who sells or offers to sell filters specifically identified for use with this PM 2.5 reference method shall certify that the required number of filters from each lot (0.1% or 10, whichever is greater) of filters offered for sale have been tested as specified for the following tests and meet 90% of each of the design and performance specifications:

Here you can find the certificate: https://www.cytivalifesciences.com/en/de/support/quality/certificates