Honest AirDoctor Review: Is it Worth it?

Looking for an honest AirDoctor air purifier review? Here’s everything you need to know about AirDoctor vs other air purifiers before making a purchase.

Overwhelmed with all of the air purifiers out there? I was too. Over the years, I’ve researched, purchased, and tested many different air purifiers, and recently invested in AirDoctor.

As you likely know, air purifiers are incredibly effective at reducing airborne pollutants in the home. They remove dust, mold, pollen, smoke, viruses, bacteria, pet dander, volatile organic compounds (VOCs), “off” odors, and other allergens that can trigger allergies and other respiratory symptoms.

Air pollutants can increase the risk of cancer as well as respiratory and heart disease. Studies suggest cancer risks for pollutants emitted indoors—specifically VOCs—were higher in houses with lower ventilation rates.

My priority was the allergens, VOCs, and many viruses that end up in our home because of our children. One of the first things we did to help manage allergy symptoms naturally was put an air purifier in our bedroom. The next year, I added put one in each of my children’s bedrooms (specifically, the AirDoctor 2000). Since using HEPA filtration in our bedrooms and main living spaces, we’ve seen a measurable improvement in symptoms.

Right now, I currently own the AirDoctor 1000, 2000, and 3500, and I’ve pre-ordered the 4000. It’s a lot, and it can get confusing, but I’ve got you! Here’s my honest AirDoctor review and everything you need to know before making a purchase.

What is AirDoctor?

AirDoctor provides professional quality air purification. The company believes everyone deserves access to clean air at an affordable price. They are transparent and regularly provide third party validation for the different types of airborne pollutants. Currently, they provide five professional grade HEPA filtration air purifiers to choose from: AirDoctor 1000, AirDoctor 2000, AirDoctor 4000, AirDoctor 3500, and AirDoctor 5500. Just like you might expect, they progressively go up in size and capacity.

The company was founded in 2016 by Peter Spiegel and Kate Williams and operates from its headquarters in California. The brand is part of Ideal Living, which also owns AquaTru water filtration.

How to Choose a Good Air Purifier

When it comes to air purifiers, you want to look for three things:

• True HEPA filtration: HEPA, which stands for High Efficiency Particulate Air, is a designation used to describe filters that are able to trap 99.97 percent of particles that are 0.3 microns. You don’t want to use air purifiers that promise “HEPA-like” or “HEPA-style” filtration.
• An additional carbon filter: This helps remove odors, gases, and VOCs, since HEPA filters don’t do this.
• Good CADR ratings: CADR stands for clean air delivery rating, and describes the volume of clean air that an air purifier produces on its highest speed setting. A good CADR rating should be at least two-thirds of your room’s square footage to effectively clean the air.

How Does the AirDoctor Work?

AirDoctor uses a three-stage filtration process. There’s a Pre-Filter, Carbon/VOC filter, and UltraHEPA® filter, which captures airborne particles as small as 0.003 microns. That’s 100x smaller than typical HEPA filters found in other air purifiers.

Laboratory testing demonstrated that the AirDoctor 3500 removed 99.99% of bacteria and viruses from the air in a test chamber.

When it comes to actually filtering the air, experts recommend at least four air changes per hour for optimal removal of airborne particles. AirDoctor purifiers clean the air in a room 4 times per hour, or every 15 minutes using a WhisperJet fan.

In short, AirDoctor excels at capturing contaminants and filtering the air in the room. It filters out small and large particles, and has an additional filter to remove volatile organic chemicals (VOCs) like formaldehyde and gases. As a result, it’s often considered a solid choice for air quality and performance.

Now, let’s get to my personal Airdoctor review after months of using it.

AirDoctor Air Purifier Review

I currently own the AirDoctor 1000, 2000, 3500, and 4000, and will be reviewing each of these. In general, they all operate the same, so there are many similarities when it comes to overall function.

In 2023, AirDoctor launched “smart” versions of each purifier (excluding the 1000). You can select either the standard version or smart version at checkout. The smart versions have an “i” at the end, and has the ability to connect to Wifi. I like that you have the flexibility to choose what’s best for you.

What I Love About It:

• True HEPA filtration
• Additional Carbon/VOC filter
• High CADR ratings in comparison to other top brands
• Has Auto mode which automatically adjusts the fan speed according to the contaminants in the air
• ALL lights can be turned off at night—absolutely no blue light in bedrooms
• The buttons can be locked
• Filters are easy to purchase together
• You can choose to have no Wi-Fi connection, which is very low EMF. Just click the standard version before adding to cart.
• Modern and attractive design
• Price – much cheaper than other high quality air purifiers (and bonus, you can get $300 off units with this link and 10% off filters!
• Good customer service
• Quiet on lowest setting

Cons:

• No remote control on main units. The only one that has it is the 2500, which is a wall unit.
• Fan is loud on the highest setting. This is temporary and occurs when the air has a higher level of contaminants.
• 1-year warranty (this is standard, but I’d prefer lifetime)

Which Size Is Right For You

The purifier that is right for you depends on the size of the room you’ll be putting it in. In general, if there’s a doorway, you’ll need a new air purifier in that room. If you’re in between two sizes, go with the larger size so you have a higher rotation of the air in the room:

• AirDoctor 1000—circulates air in 285 sq. ft. Great for small bedrooms and offices. Personally, I would skip this one. It rattles a bit because of the location of the fan, and the 2000 is more powerful at the same price.
• AirDoctor 2000/2000i—circulates air in 305 sq. ft. great for small to medium-sized bedrooms and high traffic rooms like larger offices and nurseries. I recommend this over the 1000 for small bedrooms because it’s a quieter, smaller, and more powerful.
• AirDoctor 2500 wall unit—circulates air in 420 sq. ft. Great for small to medium-sized rooms, like bedrooms, offices, or playrooms. This unit can be use as a wall or floor unit, so it’s super versatile! It launched in 2024 to accommodate rooms without available floor space. This comes with a remote.
• Air Doctor 3500/3500i—circulates air in 630 sq. ft. Great for studios, master bedrooms, kitchens, and larger living spaces. This is the most popular unit!
• AirDoctor 4000 (new for 2025)—circulates air in 630 sq. ft. Sleek design. Great for larger living areas, like studios, master bedrooms, and open concept spaces.
• Air Doctor 5500/5500i—circulates the air in 1,043 sq. ft. Great for 1-bedroom apartments, larger living spaces, open concept areas, rooms with larger ceilings, basements, and garages.

Is the AirDoctor Loud?

Because air purifiers should always be running, noise level matters. This is a pet peeve of mine because I really don’t enjoy feeling like I’m in an airplane when trying to watch a movie. All AirDoctor units range between 30-59 decibels depending on the fan speed. Each unit sit at around 30-35 on the lowest fan setting. For reference, a noise rating around 50 decibels is roughly equal to that of a refrigerator.

I have the AirDoctor 3500 in our main living space, and it’s incredibly quiet. I don’t even hear it in the dining room. In fact, when reviewing all of the models, the AirDoctor 3000 series is my favorite. The AirDoctor 2000 has a similar sound, so we keep these in the bedrooms. As a reminder, all of the units can have the option to turn off all of the lights, so you won’t even notice it when you’re sleeping!

Do I Need One In Every Room?

Technically, yes. While this is the ideal scenario, start small. Prioritize the bedroom since this is where you spend the majority of your time, then get one for the room you hang out in most. Because we have an open concept house and cook a lot, we prioritized getting a larger purifier for the dining room and kitchen area. It’s amazing to what cooking actually does to your indoor air!

How Often Do Filters Need to Be Replaced?

This depends on the unit and the room. I’ve found that the filter for the AirDoctor 3500 needs to be replaced about every 8 months. This is running in the center of our house near the kitchen, so it gets a lot of use.

To make your filters last longer, make sure to vacuum the pre-filter on the units every 3 months. Also, I recommend running your air purifier on “Auto” so the purifier will run on the lowest setting when the contaminants are low in the air.

As of 2024, Air Doctor does do sales on filters! You can get 10% off all filters with this link.

AirDoctor vs Other Air Purifiers

After researching a lot of different brands, AirDoctor is comparable with the top air purifier brands. The UltraHEPA filtration is one of the best in the industry, and it has an additional carbon filter to hande VOCs and gases. Many filters do not have an additional carbon filter, so to me it’s what sets the top brands apart from the rest. AirDoctor also has one of the highest CADR ratings.

While the fans are about 30% quieter than standard air purifiers, it is still relatively loud (between 50-60 decibels) on the highest setting. I find this to be standard with most air purifiers, but it’s something to keep in mind.

Lastly, the customer service is fantastic. I had major issues with other brands. AirDoctor is helpful and it’s very easy to buy filters in bulk and at a discount.

In my research and testing for this AirDoctor review, I found that the one notable feature it lacks is a remote control. Most high-end air purifiers connect to Wi-Fi and offer a remote. While you have the option to get Wifi, you control it from your phone only. I personally wanted a low EMF device, so I chose the standard versions without WiFi. Since my air purifiers run on Auto, I find I don’t need a remote at all.

Where to Buy

I always recommend purchasing direct from the manufacturer for the best price and customer service. It’s easy to register your device and the company will have all of your purchase information. You can also immediately purchase filters with your order so you’re good for years to come.

Looking for an AirDoctor coupon code? I got you! You can get a deep discount on each size, including $300 off (almost 50% off) the AirDoctor 3500 and 10% off filters! That’s an insane discount and makes it much more affordable—a major plus for us!

Final Thoughts on My AirDoctor Review

I ultimately chose to make the switch to AirDoctor for three reason. First, the UltraHEPA filtration is some of the best industry-wide. Second, the price point. I wanted to get more for the bedrooms in our house, and purchasing multiple purifiers gets costly. Lastly, I wanted no WiFi integration and the ability to turn off all of the lights. I’m so thankful that my friend Alaena introduced me to the air purifiers!

While I’ve used many different air purifier brands, my best experience thus far has been with AirDoctor. I’ve had horrible customers with previous air filter brands, and AirDoctor is responsive and has taken care of me when I need it. In my opinion, this makes the AirDoctor more than worth it!

Have more questions about my AirDoctor review? Let me know in the comments below!

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