Instruct: Classify the given Amazon review as either positive or negative.
Query: Truely universal, great

I have a Honeywell 17000 and when (very easily) cut to size this filter makes a little over two full pre-filters for the air purifier. It is the exact same material that came with the 17000 in the box, and was the best price I could find on the internet(and I did my research). I am very satisfied.