DEYO NOTES: Blank fields indicate there was no data available to confirm information, but likely means "no". Otherwise, the vendor/manufacturer would indicate it as a selling feature. Also an "X" in the NBC or CBA Approved column can indicate either rating. While a mask might not be NBC rated, it may be CBA approved. Additionally, approval rating can change depending on the filter used.

NBC = Nuclear, Biological, Chemical. CBA = Chemical-Biological Agents. Some products may show CBR which is Chemical, Biological, Radiological.

¹Like the MCU 2P but a new unit and in all black
²Harder to come by as this unit is now 'suplus' but very highly rated
³very like the Scott M95 except has 1-piece eye shield.