I asked the same question a week or two ago, anticipating the Texas heat index will rise as we head more into the summer.
I found this link:
http://road.cc/content/buyers-guide/...4-plus-14-best
As always, for any recommendations, take it with a grain of salt. But what is interesting on that review is most of the brands/makers I have not heard of before...not that I am knowledgeable in this realm to begin with. And, yeah, it's UK-based.