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AIRDOCTOR

AirDoctor 4000 Air Purifier for Large Rooms Triple filtration technology with UltraHEPA Carbon VOC material Air Quality Sensor

3.1(4)
$799.00

161+ bought in the past month

About this item

  • AD4000 features the award-winning triple filtration you know and love from our other AirDoctor models – now delivered in one innovative, cylinder design
  • Six months of clean air - Replace your AirDoctor 4000 filter every 6 months (under normal use) for best performance
  • Capture ultra-fine contaminants - UltraHEPA filter captures 99.99% particles down to 0.003 microns, including pollen, smoke, bacteria, & viruses
  • Say goodbye to toxic gases - Premium Carbon/VOC filter reduces pollutants like gases, VOCs (Volatile Organic Compounds), and odors from cooking, cleaning, furniture, & more
  • Remove pet hair & dust - Pre-Filter captures larger particles and visible debris, protecting the more advanced filters & extending their lifespan
  • Perfect Compatibility: To ensure quality performance, always use authentic AirDoctor filters with the AD4000. Non-AirDoctor filters are not compatible and could damage the unit

Key details

Color
Black
Brand
AIRDOCTOR
date_first_available
September 24, 2025
manufacturer
AIRDOCTOR
best_sellers_rank
#429,598 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #474 in HEPA Filter Air Purifiers

Technical specifications

Power Source
electric
item_model_number
AD4000
Highlights

About this item

  • AD4000 features the award-winning triple filtration you know and love from our other AirDoctor models – now delivered in one innovative, cylinder design
  • Six months of clean air - Replace your AirDoctor 4000 filter every 6 months (under normal use) for best performance
  • Capture ultra-fine contaminants - UltraHEPA filter captures 99.99% particles down to 0.003 microns, including pollen, smoke, bacteria, & viruses
  • Say goodbye to toxic gases - Premium Carbon/VOC filter reduces pollutants like gases, VOCs (Volatile Organic Compounds), and odors from cooking, cleaning, furniture, & more
  • Remove pet hair & dust - Pre-Filter captures larger particles and visible debris, protecting the more advanced filters & extending their lifespan
  • Perfect Compatibility: To ensure quality performance, always use authentic AirDoctor filters with the AD4000. Non-AirDoctor filters are not compatible and could damage the unit
Close-up view of the AirDoctor 4000 Air Purifier for Large Rooms Triple filtration technology with UltraHEPA Carbon VOC material Air Quality Sensor
Details

Materials and maintenance

dimensions
‎ 19.7 x 32.3 x 19.7 inches; 15.8 Pounds
Product Dimensions
19.7"D x 32.3"W x 19.7"H
Item Weight
15.8 Pounds
product_dimensions
19.7 x 32.3 x 19.7 inches; 15.8 Pounds

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Product videos

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Customer reviews

Customers say

Customer summary is not available yet.

Reviews with images

Customer review image for Flagship unit most likely defective production
See all photos
☆☆☆☆

Not great

After a week it said we needed to change the filter and no longer worked. Read more

Kathryn Osgood
★★★★★

Looks Great Works Great

The AirDoctor 4000 blends into our living room both in looks and in sound. It does not make a noise on auto. We have seen the AirDoctor go into high gear whenever we burn something in the kitchen or when we are using our nebulizer in the house so we are very impressed with the sensors. Read more

Ryan Silverstein
☆☆☆☆

Flagship unit most likely defective production

Worked great for a week or two. Then as another person mentioned, it demanded a filter change. If the red filter light is on, the machine literally quits working/purifying!! It just turns into a useless brick. I had ordered a spare filter when they were on sale so reluctantly opened it and swapped out an already new filter for another new filter. And within a couple minutes it demanded a filter change again. Air Doctor customer service has been easy to deal with though. We went through troubleshooting, photos, videos. They are sending me a replacement for the spare filter I opened and also sending me a whole new purifier. Although, it’s taking very long to arrive. I must pack and send everything back to them once the replacements arrive. I’ve been without a purifier for over a week now. They refused to expedite shipping or anything. I was looking into Air Doctor for a year at least but the initial cost is a massive turn off, plus the filter must be replaced every 6 months (~$90). I was so excited to finally have this in my home and it’s just been a complete let down. I can’t even speak for it cleaning my air because it malfunctioned before I could comment on its effectiveness. Read more

Customer review image for Flagship unit most likely defective production
GP
★★★★★

Great Unit

Great unit that works well and looks nice too. Air is much cleaner. Very happy with my purchase. Read more

Josh Tyler
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