OXY ONE Portable Oxygen Can 18 Liters

Emergency portable oxygen can, providing peace of mind with an 18-liter capacity.

- Brand: OXY ONE
- Capacity: 18 liters
- Use: Emergency oxygen can
- Type: Portable

On Amazon, one can is ￥3,400!!

Thank you for looking.
I was planning to go mountain climbing but had to give up, so I am listing this for sale.
Would anyone be able to make use of it?