Fitted and put in emergency highway patrol bags but never deployed in the field. Lens and outserts are in EXCELLENT condition with only the lightest signs of wear if any from just some shuffling in a bag. Any masks I have that are not truly excellent with deeper scratches or abrasions I sell separately with their own photos. All masks of this age 2004, will have the very slightest hint of yellow in the main lens (not heavy or dark yellow). You can see an example in 1st photo at the edges where you will see slight color difference between the main lens and the clear outsert. They are very clear but not crystal clear, you need one brand new from factory to get crystal clear. All masks will have some white residue on them. This is a harmless talc put on in production for rubber preservation. It is normal and can be washed of with soapy water. Some masks have more or less of the white talc remaining – makes no difference to the integrity of the mask.