Instruct: Classify the given Amazon review as either positive or negative.
Query: Dont be cheap! pay the money and het a different one

The wireless function is the coolest thing, but as an air purifier its ok it works for a small room, but is worthless for a medium to large room. I found it is worth paying more for a different brand, because they clean the air better.I wouls buy this again for a small room only.