AIRDOCTOR AD2000 4-in-1 air purifier review – how much is replacement filter cost?



How good is air quality in AIRDOCTOR AD2000 4-in-1 air purifier? AirDoctor’s Auto-Mode uses an air quality sensor to assess the air quality in the room and immediately adjust to the correct filtration level. 3-stage filtration provides another layer of protection to the air you breathe. With its UltraHEPA filter and proprietary dual-action Carbon VOC (Volatile Organic Compounds) filter, the AirDoctor 2000 air filter removes allergens, dog dander, and other volatile organic chemicals like formaldehyde. More in AIRDOCTOR AD2000 4-in-1 air purifier review.

Consumer Reviews is supported by its audience. This website contains Paid Links. As an affiliate, we earn from qualifying purchase. Find more

AIRDOCTOR AD2000 4-in-1 air purifier YouTube video review

Pros & Cons


  • High CADR ratings
  • True HEPA filtration
  • Auto mode to automatically adjusts the fan speed
  • The buttons can be locked


  • No remote control
  • No Wi-Fi or smart features


  • Item AIRDOCTOR AD2000 4-in-1 air purifier
  • Dimensions (WxDxH): 13.85″ x 6.6″ x 18.72″
  • CADR: 162 CFM
  • Room Coverage: 305 sq. ft.
  • Noise Level: 40 – 55 dB
  • Replacement Filter available
  • Filter Life: 6 months (Carbon) / 12 months (UltraHEPA) months
  • Weight 10 pounds


AIRDOCTOR AD2000 4-in-1 air purifier cost at around $389.

AIRDOCTOR AD2000 4-in-1 air purifier review


AIRDOCTOR AD2000 4-in-1 air purifier measures 13.85″ x 6.6″ x 18.72″ and weighs around 10 pounds. It has nice decor look and can be placed in any place.

AIRDOCTOR AD2000 4-in-1 air purifier Filter

To eliminate each undesired molecule, a three-stage filtration method is employed. Pet hair and dust are among the larger particles that are visible to the human eye and are captured by the first stage, a pre-filter. To keep them from circling the air in your house, this filter collects them.

Subsequently, a carbon filter is used to remove any volatile organic compounds (VOCs) from the air. Your cat’s litter tray releases molecules known as volatile organic compounds (VOCs), which can be trapped to reduce odours in your house.

The last filter is a HEPA filter, which can capture even the smallest allergens and pollutants from the air in your house, down to 0.003 microns. If you live with your pet, an air purifier won’t stop allergies, but it can greatly lessen their effects. It might not effect any allergic visitors to your home.

Air Quality sensors

Every AIRDOCTOR air purifier has an integrated sensor that automatically modifies the fan speed in response to the quantity of airborne contaminants it detects. The front panel shows the statistics on air pollutants. It will begin operating in high-speed Auto mode as soon as the power button is pressed. Subsequently, the air sensor monitor will identify the air (I appreciate that it continuously checks the quality of the air) and make any required adjustments, varying the fan speed to suit the level of contamination in the room.

The fan speeds can be manually changed between Low, Medium, High, and Boost. For daily use, Low and Medium are ideal, while High is excellent in places where there are more airborne pollutants (such heavy smoke). When you want to quickly purify the air, the Boost option works well for shorter periods of time.

Room coverage

Despite being designed to fit in smaller places, the AirDoctor 2000 is a potent purifier. It will, for instance, circulate the air four times every hour in a 305 square foot room and twice an hour in a space twice that size. That occurs often enough to rid the air of all the toxins, protecting both you and your pet from harm.


The three AirDoctor devices exhibit a decibel range of 30 to 59, contingent upon the fan speed. When the fan is set to the lowest level, all units are at about 30-35. To give you an idea, a refrigerator has a noise level of about 50 decibels.


After removing the tape that was holding the front panel in place and popping it up, I replaced the filter’s plastic cover, plugged it in, and pressed the power button. About thirty seconds passed.

Editor’s recommendations

Abu Saleh Rizvee
Abu Saleh Rizvee

I love to write content and contribute for my society. I invest my days in creating content for products those I love and brands who need online presence

Articles: 1357