Hunter Purifier and Air Cleaner Filter Tips Guide With all of the automobiles on the freeway, it is not wonder that air contaminants are such a health risk. we are fortunate that, there are lots of air cleaner products and air purifiers to protect our respiratory systems. A fast online search will bring you reviews on air purifiers by Hunter along with Honeywell or Oreck brand names. those air purifiers are the 3 most popular brands in home air purifiers available currently.