Brand new still in box and has not been opened. Great for for anyone with allergies! Advanced 3-Stage Filtration System: Designed in California. The Pre-Filter, True HEPA Filter, and High-Efficiency Activated Carbon Filter capture allergens, pet hair, dander, smoke, mold, odor and large dust particles, in addition to removing 99.97% of airborne contaminants as small as 0.3 microns. The 3-in-1 filtration system effectively improves indoor air quality so you can enjoy fresh air at home. If you have any questions or concerns please feel free to contact me at firstname.lastname@example.org!