Amazon is selling a $180 Bissell air purifier for $84, and shoppers call it a 'workhorse for allergy relief'

TheStreet aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. If you have a Prime membership, you can score some amazing deals before the rush with this year's annual Prime Day event, which begins on July 8. If you don't have…