Yes. One of the search filters you're using for that category is keyword=bars
It means include all products having the word bars (or bar) in product name or description.
The description of the product in question has the word bar in "clay bar treatment".
That's why the product is in your category.
If you browse through your bars-pub category in the Factory you'll find other unrelated products in that category.
You should further narrow down your search subscriptions to exclude these unrelated products.