Air Filter Set for Air Doctor 3500 3000 3500i 1 HEPA + 2 Carbon + 4 Pre-Filters
Advanced Low-Resistance Airflow: Crafted with premium low-density structure technology. Fully Compatible with Air Purifier Models: Air Doctor 3000, Air Doctor 3500, and Air Doctor 3500i. Quick, Tool-Free Installation: Swapping out old filters takes under a minute.