Mask is used, but stored and kept in container. Sight glass is clear, no major scrapes or damages, all rubber is in new like condition. Mask was used/worn 5 times the entire 2 years I have had it, kept in storage and not of use to me anymore. She’s a little dusty, other than that, she’s ready to operate. Comes with two gas filters that protect against: CL2/CLO2/HCL/HF/SO2/H2S/P3filter glue is NOT discolored, still clear.