This Demist Shield from ITT is designed to fit the MV/PVS-7 Ultra, AN/PVS-7D, NQ-5000 & NQ-5001 night vision monoculars. This disposable protective cover snaps onto the ocular of NVD; they prevent condensation from forming on the optical surfaces during dynamic temperature conditions.
This package contains a single demist shield; the PVS-7 requires two of these shields due to its biocular configuration.