AirDoctor 4000 Air Purifier – UltraHEPA Air Filtration for Large Rooms
Powerful Air Purification. Modern Design. Cleaner Indoor Air.
Experience advanced air purification with the AirDoctor 4000 Air Purifier, designed for large bedrooms, living rooms, kitchens, and open-concept spaces.
Combining powerful 3-stage filtration with UltraHEPA® technology, energy-efficient operation, and a sleek, modern design, the AirDoctor 4000 helps reduce airborne dust, pollen, pet dander, smoke particles, odors, and other indoor air pollutants.
With the ability to circulate air in spaces up to 694 square feet four times per hour, this air purification system delivers consistent filtration for everyday indoor living.
Available in two contemporary finishes, the AirDoctor 4000 blends seamlessly into your home while helping maintain cleaner indoor air.
Key Features & Benefits
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Large-Room Coverage: Circulates air in spaces up to 694 sq. ft. four times per hour.
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Advanced UltraHEPA® Filtration: Designed to capture fine and ultrafine airborne particles, including dust, pollen, mold spores, and pet dander.
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3-Stage Filtration System: Combines particle filtration with activated carbon technology to help reduce airborne contaminants, odors, and volatile organic compounds (VOCs).
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Automatic Air Quality Monitoring: Built-in sensors monitor indoor air quality and adjust fan speed when operating in Auto Mode.
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Energy-Efficient Performance: Designed for continuous air purification with reduced energy consumption.
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Quiet Operation: Multiple fan speeds accommodate everyday living, working, and sleeping environments.
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Modern Design: Available in Matte White and Matte Black.
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Smart Technology Option: An upgraded Smart model offers mobile app connectivity for convenient remote operation.
Advanced 3-Stage Air Filtration
The AirDoctor 4000 uses a combination filtration system to address common indoor air pollutants.
1. Pre-Filtration
Captures larger airborne particles such as hair, lint, and dust, helping protect the primary filtration system.
2. UltraHEPA® Filtration
AirDoctor's UltraHEPA technology is designed to capture ultrafine airborne particles, including allergens, smoke particles, and other microscopic contaminants.
3. Premium Carbon/VOC Filtration
The activated carbon filtration layer helps reduce household odors, certain gases, and volatile organic compounds associated with cooking, cleaning products, and everyday household activities.
Together, these filtration stages help maintain cleaner indoor air throughout your living space.
Intelligent Air Quality Monitoring
The AirDoctor 4000 features an integrated air quality sensor that continuously monitors airborne particles.
When operating in Auto Mode, the purifier automatically adjusts its fan speed in response to changing air quality conditions.
This feature allows the system to increase filtration when needed and reduce fan speed when air quality improves.
Optional Smart Upgrade: Select the Smart model for compatible mobile app controls and additional connected features.
Technical Specifications
| Specification |
Details |
| Brand |
AirDoctor |
| Model |
AirDoctor 4000 |
| Product Type |
Portable Room Air Purifier |
| Recommended Application |
Large Rooms and Open-Concept Living Spaces |
| Air Circulation |
694 sq. ft., 4 times per hour |
| Filtration System |
3-Stage Filtration |
| Primary Filter |
UltraHEPA® |
| Additional Filtration |
Pre-Filter and Premium Carbon/VOC |
| Air Quality Sensor |
Yes |
| Automatic Fan Adjustment |
Yes |
| Fan Speeds |
Multiple Settings |
| Smart App Connectivity |
Available on Smart Model |
| Colors |
Matte White / Matte Black |
| Dimensions |
Approximately 14" W × 14" D × 28" H |
| Weight |
Approximately 15.8 lbs. |
| Power Consumption |
Approximately 7–70 Watts |
| Power Cord Length |
6 ft. |
| Filter Replacement |
Approximately Every 6 Months |
| Manufacturer's Warranty |
1-Year Limited Warranty |
Maintenance & Filter Replacement
The AirDoctor 4000 is designed for straightforward maintenance.
Recommended Maintenance:
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Replace the UltraHEPA and Carbon/VOC combination filter approximately every 6 months.
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Check the filter replacement indicator for maintenance reminders.
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Clean the exterior and accessible pre-filter area periodically with a soft, dry cloth.
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Keep air intake and outlet openings clear of obstructions.
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Always turn off and unplug the unit before cleaning or replacing filters.
Filter life may vary depending on air quality, operating conditions, and frequency of use.
Replacement Filters: Use genuine AirDoctor 4000 replacement filters to maintain proper fit and filtration performance. Replacement filters are sold separately.
Manufacturer's Warranty
The AirDoctor 4000 includes a 1-Year Limited Manufacturer's Warranty covering defects in materials and workmanship under normal use.
AirDoctor may repair or replace qualifying defective units in accordance with its warranty terms. Shipping and processing fees may apply.
The manufacturer's warranty does not cover damage resulting from misuse, accidents, improper maintenance, or normal filter replacement.
For warranty assistance, contact AirDoctor Customer Support at 1-800-221-2515.
Shipping & Delivery
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Shipping: Free Standard Shipping within the contiguous United States.
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Order Processing: Typically 1–2 business days.
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Estimated Delivery: 6–9 business days.
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Delivery Method: Standard Parcel Delivery.
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Assembly: No assembly required.
Shipping times are estimates and may vary depending on inventory availability, destination, and carrier conditions.
What's Included
Cleaner Air for Everyday Living
From pet dander and seasonal pollen to cooking odors and household dust, indoor air can contain a variety of airborne pollutants.
The AirDoctor 4000 Air Purifier combines advanced filtration, automatic air quality monitoring, and energy-efficient performance in a modern, space-conscious design.
Whether placed in a living room, bedroom, or shared family space, the AirDoctor 4000 offers a convenient way to support cleaner indoor air throughout the year.
