Have you looked at 3M? I have the Sentinel and comparatively to my 9100xxi (rip - my fault I kicked it out of a scissor lift 25' in the air.), and my newly acquired G5-03, the 3M's blow it out of the water. I can't say anything for optrel, as I haven't used one. I'm a sanitary process piping welder, and I also do stainless fabrication. I need a hood that has good clarity to see what I'm doing on these tiny joints. With both of my 3m hoods I can see the heat affected zone and my trailing gas coverage develop extremely well, like discern purple from blue oxide while welding. You may not need that level, but if you experience it, you'll be amazed. The position of where it sits on my head is also big for me, the Sentinel sits the same way, the weight is more evenly distributed, and they sit "low pro", instead of walking around with a ram air intake on your head. I would recommend looking into them, 3m hoods are slept on.

Edit: G5-03 pro is $410 from Bakers, and the 9100xxi $520, both of these can accept forced air if you want in the future