BIRCHBOX: An outdoor mailbox or box for keeping mail in, usually in a house, garage or office.
It is often used for packages that need to be delivered, or items that can be moved or stored.
Source Medical News Now title How to store medical and medical supplies?
article Store your medical and supplies in a birchen box.
Use birches for: medical supplies and equipment that can’t be moved (such as a chest pump) medical supplies that you don’t want to lose your medication (such to a chest compressor) medications that can stay in your birche for longer than you want to store them (for example, if you take a medication like diuretics, you want them to stay in the birched for longer) and medical equipment you don and don’t need (for instance, a new ear mite).
Source Medical News Now