Unicom Oxygen Mask L size with 2m tube New, unopened I own an OxyLand Z3000 and an OxyHotel for another dog, but they weren't large enough for my big dog. I bought this for my large dog in case of emergencies, as she is currently in care. I haven't had a chance to use it, so it's unopened. (Images 1 and 2 are the actual product) (I consulted with Unicom and purchased the L size for my Golden Retriever girl) This is for human use, so it's not meant to fit tightly on the face. I purchased this for my dog, but since it's unopened and new, I believe it can be used by humans without any hygiene concerns. Shipping will be done in the most affordable way possible, considering the timing, so please understand. Thank you.