Unicom Portable Oxygen Can Pocket Oxy 10L/18L Set with Small Mask

Purchased in August 2023.
Opened to confirm tube connection, but unused.

Set contents below.

?Portable Oxygen Generator [Pocket Oxy POX04] 10L
?Portable Oxygen Generator [Pocket Oxy Plus POX05] 18L
?Dedicated Mask for Portable Oxygen Generator [Pocket Oxy] [Pocket Oxy Plus] *with tube S size

The oxygen cans have minor scuffs on the plastic parts that are not visible in the photos, which were present from the beginning.
Additionally, there are tape removal marks on the plastic case (photo 5).

UNICOM
pocket oxy