This one looks decent. Its look better than the 858D that I bought.

I only did a few tests with the 858D. It worked for a couple test solderings but I use it very sparingly and l dont leave it plugged in for extended lengths of time.

So these ones which use a blower pump sending air through a tube are supposed to be better than the type which jist blow air with small electric motor housed within the handle. The cost reflects the quality of the tool.