Airdoctor Ad3000 / Ad3500 Fits Both Models Genuine Replacement Ultrahepa Filter For Air Doctor 4-in-1 Home Purifier

Genuine AirDoctor AD3500 UltraHEPA filter fits AD3000 & AD3500 units. Captures ultra-fine PM 2.5 particles at 0.003 microns—100x smaller than HEPA standard. Ideal for homes, offices, classrooms, and hospitals. Always unplug unit before replacing filters. Customers also buy AirDoctor 2000, 5500, and 1000 models.