I don't know exactly and I don't understand the science of it but it works. There's a whole thread about it you can search for. I don't think this is exactly the one I have but it looks pretty similar. https://www.amazon.com/Electric-Rec...jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
Not the brush but the plastic. The bristles are short, so I once angled it and ended up making contact with the plastic case on the surface of the record.
Ah, that makes sense. I’d be nervous to use one with shorter bristles, for that reason. The one I use now is actually metal, but the bristles are long enough I’m not worried.
That is me, I guess. The Ortofon is a nice carbon fiber brush, I suggested the Boundless because I got the impression the OP was looking for low-cost options. The Ortofon is stiffer and will create more drag, so you do want a pretty torque turntable if you're cleaning very dust albums with it (like the first time they're cleaned).
I just took delivery of an Ursa Major brush with a black ash handle, $60 delivered. I like the wide pad So far I found it far more effective than my Gold AQ carbon fiber brush. You have to have a light touch because you can easily bring the record and platter to a dead stop. Another thing I found is I just can't roll it from front to back and lift it straight up as the manufacturer describes. I found that leaves a large line of debris behind on the record's surface. Instead I found that it works best when I roll it front to back. When I get to the last free rows of cotton fiber I slide the brush off the record (away from the label). This is similar to the way you use the AQ gold carbon fiber brush. So far it does a better job the the AQ brush. About twice as good at twice the price, that works for me
I just recently purchased a MusicNomad Next Level Vinyl Record Cleaning kit. It's $20, and it works great. It looks like a hairbrush but it absolutely removes all the dust. The only complaint I see on Amazon is they don't sell the cleaning fluid separately from the brush kit.