Hi Ray,
I am not recommending you buy a cheap helmet-merely pointing out that the same goods can be bought at vastly different prices. Helmets are a minefield,far better to be able to "test ride" one but it's not possible.I have toyed with the idea of a "helmet test centre" ie try lots of different helmets whilst sitting on your own bike ,in a wind tunnel.You could then suss out the noise on your own head,and if comfortable.But I couldn't see how it could be made profitable..It's not like you could do with clothes -order several,try and send back -apparently that's what some people do. As who would want a previously worn helmet (especially with Covid about)?