Instruct: Classify the given review as either positive or negative.
Query: Better than off brands

This is a much better filter than the knock offs I find in the stores in my town. My canister vac is over 20 years old (running great, still!) and I can really tell the difference in the air in my house when I vacuum with this filter vs the off brands. It's worth getting a couple to stock up & have on hand if you can.