I am in the market for a new respirator , I have been looking at the Axminster APF evolution and the JSP Power Cap Active IP from toolpost, are these the same cap as they look identical, toolpost say beware of cheaper imitations, and looking at the weights there does seem to be a difference of about 200g , anyone own either of these and any comments good or bad? price is close (about a tenner in it) . any advise welcome