AirDoctor 5500 Review: A High-Performance Air Purifier for Large Spaces

Introduction

The AirDoctor 5500 is the successor to the AirDoctor 5000, and it is built to handle large rooms for air purification. In short, the new AD5500 scored exceptionally well on air purification tests due to its six filters split between two different air intakes. The addition of another intake is what sets the 5500 apart from the single air intake on the 5000. The only major con to the AD5500 is the higher filter replacement cost, since the 5500 uses AirDoctor’s patented design and requires AirDoctor filters.

Who the AirDoctor 5500 Is For

The AirDoctor 5500 is designed for anyone who needs to purify the air in a large space. It offers an extra-large coverage area of up to 2,002 square feet with two air changes per hour, making it suitable for most homes and small offices. If you have a large open-plan living area, a big bedroom, or a small office that needs consistent air cleaning, this unit is built to handle the job.

The device is also a good fit for people who want a simple, no-fuss air purifier. It has two air intakes with three filters each, totaling six filters on the device. These filters are able to bring PM2.5 down to 0.1 PPM within the first hour of testing, which is 0.37 PPM below the current testing average. Finally, the 5500 is a simple device, and with that simplicity comes an easy-to-use experience. The controls are reactive and intuitive, the wheels make it easy to move around, and auto mode allows you to turn the device on and forget about it.

Main Strengths

The AirDoctor 5500 excels in several key areas that matter most for an air purifier.

Purification Performance

In purification testing, the AirDoctor 5500 scored nearly identical numbers compared to its older model, the AD5000, but it did perform slightly better in the number of particles removed. Looking at testing averages across similar air purifiers with comparable coverage areas, the 5500 had excellent scores. Furthermore, the 5500 beat current testing averages in all purification performance categories.

Within the first hour of testing on its max fan speed, the system significantly reduced all testing metrics. When measuring baseline PM2.5, the AirDoctor 5500 reduced measurements from 96.9 PPM to 0.1. For comparison, the testing average for PM2.5 reduction after the first hour is 0.47 PPM. The AirDoctor 5500’s 0.1 PPM is a notable improvement. As a result, the AirDoctor removed 98 percent of airborne particulates within the first hour.

Ozone Generation

With most air purifiers, ozone generation isn’t an issue. However, some that use negative ion generators have the potential to create ozone. To test this, the AirDoctor was run for 120 minutes, measuring ozone levels before and after with an electronic ozone meter. The AirDoctor 5500 had no measurable ozone produced during air purification tests.

Filtration System

The AirDoctor 5500 uses a new patented filter design that utilizes three different air filters to purify the air. Additionally, the system has a negative ionizer that can be toggled on and off.

The pre-filter is designed to catch larger particles in the air before the main filters. It is best designed to catch human or animal hair, lint, or other large dust particles. The carbon filter focuses on capturing VOCs, odors, and gases that the pre-filter and HEPA filter will miss. Next up is the HEPA filter, which is the primary filter in the unit. The HEPA filter is rated H13 and is able to remove airborne particulates as small as 0.003 microns. Finally, the ionizer releases negatively charged particles into your environment, forcing extremely small airborne particles to clump together and fall to the ground. This feature can be turned on or off.

Coverage and Airflow

The AirDoctor 5500 has a coverage area of 2,002 square feet. Its large coverage and high airflow allow it to handle the largest rooms or even entire homes. Additionally, the CADR rating on this system is an impressive 534 CFM, demonstrating high-efficiency indoor purification performance.

Build Quality

The AirDoctor 5500 is primarily built out of plastic material from top to bottom. While testing, the unit felt well constructed and sturdy. Its heavy base and properly fitted plastic paneling give the AD5500 excellent scores in build quality. The only concern with build quality is the filter covers; removing the panels could damage the plastic retention clips with repeated use of opening and closing the filter covers.

Usability

Overall usability for the AirDoctor 5500 was exceptional. Between the simple setup, easy-to-use controls, and convenient wheels for mobility, the AirDoctor 5500 is an extremely user-friendly air purification system. Setup is fast and easy; the AirDoctor 5500 came nearly ready to plug in, with only a few items removed from the packaging. The filters on both sides need to be removed from their packaging before turning the system on.

The AirDoctor 5500 has simple, easy-to-use controls on the top panel. They have a quick response time to user touch and offer backlit icons for high visibility display. Additionally, the front-facing illuminated ring acts as an air quality meter. Depending on the room’s current air quality index, you will see blue for good air quality, orange for moderate air quality, and red for poor air quality.

An extremely convenient feature is the auto mode. The AirDoctor 5500 is equipped with an auto-adjustment fan feature to help maintain your air quality. This feature demonstrates the true ability of a plug-in-and-forget air purification system.

Things to Consider Before Buying

All air purifiers have trade-offs, and the AD5500 is no exception.

Price Point

First, the 5500 has a higher price point than other devices with a similar coverage area. This is a significant consideration if you are shopping on a budget.

No Remote or App Connectivity

Second, this model does not have remote control or app connectivity. That means you will have to physically interact with the device to control it. If you prefer managing your appliances from your phone or with a remote, this could be a drawback.

Filter Replacement Costs

Finally, the addition of a second air intake doubles the amount of filters required to make the device function. This increases the annual maintenance cost of replacing these filters. The AirDoctor 5500 has an estimated yearly maintenance cost of $250. You will need to replace the filters and watch the pre-filter as needed. Additionally, you need to wipe down the sensors when they get dirty.

Noise Levels

To determine the level of noise the AirDoctor 5500 creates, sound measurements were taken on both the lowest and highest fan speeds. The ambient noise of the testing room was measured at 43 decibels. On the lowest fan speed setting, the AirDoctor 5500 measured at 43.7 decibels. On the highest setting, the system measured output noise at 65.1 decibels. In comparison, the AirDoctor 5500 does not produce a higher decibel measurement, scoring just above the current testing average of 62.7 decibels.

Size and Weight

The AirDoctor 5500 is a large air purifier that stands 28.8 inches tall. The system weighs 33 pounds (14.9 kilograms). The AirDoctor 5500 does have wheels for added mobility, which helps offset its size and weight.

Buying Advice

I would recommend the AirDoctor 5500 if you are looking for a large 2,002 square foot coverage area. The purifier is going to complete two 2,002 square foot air changes per hour and has a CADR rating of 534 CFM. The 5500 comes with three different filter types: carbon, HEPA, and an optional ionizer. These filters work in combination with the massive coverage to provide exceptional purification performance. It reduced PM2.5 and PM10 down to 0.1 within the first hour of testing and generated no ozone. The build quality is excellent, and usability is fantastic.

The AirDoctor is an incredibly simple device. While it may lack things like app connectivity and remote control, it makes up for it by being extremely user-friendly and extremely high-performing. Overall, if you’re looking for an air purifier that performs well in a large area, the AD5500 is a perfect choice.

Conclusion

The AirDoctor 5500 is an exceptional purification performance update to the AD5000. It combines a large coverage area, high airflow, and a multi-stage filtration system to deliver clean air quickly. The main trade-offs are the higher upfront price, the lack of smart connectivity, and the ongoing filter replacement costs. If those considerations are acceptable, the AirDoctor 5500 is a strong choice for anyone needing reliable air purification in a large space.