Interesting, which commercial machines are you referring to?
I did a little research when I bought mine, I think mostly vacuum wars testing, and I think they found similar results, with the commercial systems just having larger tanks. That said, I don’t expect their tests are super scientific or anything so I’m legitimately curious.
My carpets aren’t thick at all though, and most of what I’m cleaning is exclusively surface level anyway.
Oh cool. Yeah that’s quite different from anything vacuum wars ever tested out. Thanks!