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Overview

The AIRDOCTOR AD4000 Air Purifier is designed for large rooms, bedrooms, kitchens, basements, and shared living spaces. Its 3-stage filtration system includes a Pre-Filter, Premium Activated Carbon Filter, and Hospital-Grade UltraHEPA Filter to help reduce airborne particles, smoke, dust, pollen, mold spores, odors, and pet dander.

AIRDOCTOR AD4000 Air Purifier for Large Rooms with UltraHEPA & Premium Carbon Filtration

Model: AD4000
Web Code: 19946180
Sold and shipped by | 3.7 seller rating (37 reviews)

Available for deliveryAvailable online only

Delivery times vary by location. Most Marketplace items leave sellers' locations within 2 business days. Allow additional time for shipping.

Seller Return Policy

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Warranty

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

Product Overview:

The AIRDOCTOR AD4000 Air Purifier is designed for large bedrooms, kitchens, basements, and shared living spaces. Featuring a 3-stage filtration system with Hospital-Grade UltraHEPA and Premium Activated Carbon filtration, it helps reduce airborne particles, odors, smoke, dust, pollen, and pet dander while providing real-time air quality monitoring.

Key Features:

• Covers large rooms and shared spaces up to 2,520 ft2 in 1 hour

• Cleans 630 ft2 in 15 minutes for rapid air purification

• Hospital-Grade UltraHEPA filtration captures particles as small as 0.003 microns

• Premium Activated Carbon filter helps reduce odors, gases, smoke, and VOCs

• 3-stage filtration system includes Pre-Filter, Carbon Filter, and UltraHEPA Filter

• AirDoctor Halo PM2.5 sensors monitor air quality in real time

• Auto Mode adjusts fan speed automatically based on air conditions

• Includes Boost mode, timer, filter indicator, and 6 fan speeds

What’s Included:

• AIRDOCTOR AD4000 Air Purifier

• Pre-Filter

• Premium Activated Carbon Filter

• UltraHEPA Filter

Why Choose the AIRDOCTOR AD4000 Air Purifier:

The AIRDOCTOR AD4000 Air Purifier is built for large indoor spaces where consistent air purification is needed. Its advanced 3-stage filtration system combines UltraHEPA and Premium Activated Carbon filtration to help reduce airborne particles, odors, smoke, and common indoor pollutants. Real-time air quality monitoring and automatic fan adjustments provide convenient operation for bedrooms, kitchens, living rooms, and basements.

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.

Shipping Charges

Free standard shipping may be available on orders over a minimum amount (before taxes, fees, and promo codes). Shipping charges may vary based on item size and your shipping address. Want a shipping charge estimate? Simply add an item to your cart, then access the cart and enter your postal code in the shipping estimate section.

Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • No restrictions in Canada
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
Product Category
Air Purifiers
Return/Exchange Period
30 days
Condition
Opened

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