OK, it's not expensive, but I'd still expect it to last more than 2 weeks! I used it occasionally, for 1-2 hours approximately two days in three, to keep me cool in the office. Less than two weeks after purchase, it flew apart unexpectedly a minute after I'd turned it on. The fan head is made of cheap plastic and has split into two pieces.
I would strongly advise against purchasing this fan. It breaks far too easily.