I ordered this one because it's made in the U.S. and because it said the primary material is aluminum - I thought I could find a scrap metals recycler for some of the parts when it ends its useful life. But the fan is mainly plastic - only the bottom tubes are aluminum. It's also very flimsy and top-heavy and when I went to move it, the top came off and the whole thing stopped working even after I put it back together. This was during the second time I've ever used it!

It seems to work again for now, but I may return it. It's a piece of cheap junk, not worth the price.