You'll find the best prices on Honeywell enviracaire 50250 air purifier in Air Purifiers when you shop online at bizrate. Do all your comparison shopping for Honeywell and Kaz Air Purifiers in one place. Compare models and see which online Appliance stores have the best merchant ratings. Make an informed decision on Honeywell enviracaire 50250 air purifier Air Purifiers before you buy. bizrate will help you with all of your holiday gift shopping needs. Buy Honeywell Enviracaire 50250 17x22 ft. Air Purifier or Enviracaire Hepa Filter F Fits 13520 50250.