The AIRDOCTOR AD5500i SMART 4-in-1 Air Purifier is engineered for very large rooms, open layouts and high-ceiling spaces. It features a dual-intake design with a 4-in-1 filtration system: UltraHEPA (capable of capturing particles as small as 0.003 microns), activated carbon/VOC filters to trap gases, odors and chemicals, plus pre-filters and an ionizer stage. The “SMART” designation adds Wi-Fi connectivity, app control, real-time air quality monitoring, filter replacement alerts and device sharing possibilities. With its large airflow capacity and advanced filtration, it’s well suited for homes, gyms, offices or other spaces where air quality is critical.
| Model | AD5500i SMART |
| Coverage / Air Changes* | Circulates air in approx. 1,043 sq ft (≈ 97 m²) 4 times/hour, or in approx. 2,086 sq ft (≈ 194 m²) 2 times/hour. |
| Filtration System | UltraHEPA (captures particles down to 0.003 microns) + Carbon/VOC filters + Pre-filters + Ionizer. |
| CADR (Clean Air Delivery Rate) | ~ 534 CFM according to independent testing. |
| Dimensions | ~ 28.8″ H × 16″ W × 16″ D (≈ 73.2 cm × 40.6 cm × 40.6 cm) |
| Weight | Approx. 33 lbs (≈ 15.0 kg) |
| Noise Level | Up to ~ 66.9 dB at maximum fan speed in testing. |
| Smart / Connectivity Features | Wi-Fi enabled, app control, filter change alerts, real-time air quality alerts. |
| Certification / Standards | UltraHEPA filter rating, dual carbon/VOC filters; also listed in ENERGY STAR for AD5500 (non-smart) version. |
| Additional Notes | Designed for “extra large spaces & open concepts” — large capacity and powerful airflow to handle bigger volumes of air. |