PROS / This is one of the smallest air purifiers, making it easy to move from room to room as you need.
CONS / Coway lacks useful help and support, as we had difficulty contacting a representative to answer some of our most basic questions.
VERDICT / The Coway AP-1512HH is the best air purifier we reviewed because it has excellent cleaning capabilities and features, a compact form, and a very energy-efficient design.
The Coway AP-1512HH is an ideal air filter to take control of your indoor pollutants without raising your monthly energy bill much. This HEPA air purifier is compact and quiet, yet it is able to filter pollutants out of small rooms with ease. It has excellent safety and convenience features. Although it doesn't hold the best Clean Air Delivery Rate (CADR) scores, it combines a number of cleaning features with a portable design. Because of its versatile capabilities, the Coway is the best small-room air purifier we reviewed and earns our Top Ten Reviews Gold Award.
Cleaning Capabilities & Modes
The Coway is designed to clean air in small rooms, yet it compares well with purifiers designed for midsize rooms. This air purifier can effectively clean the air in rooms up to 360 square feet, but it loses much of its efficiency in larger spaces. It doesn't have the best CADR scores of the purifiers we reviewed, but it still is fully capable of reducing the indoor pollutants in your home without much issue.
The Coway uses a four-stage filtration process to effectively clean the air in your room. The washable pre-filter captures large particles like hair and dust, meaning you don't have to replace the more effective filters as often. Next, the carbon filter does a decent job of removing odors, though some users have noted it doesn't remove strong odors quickly. The True HEPA filter captures the smallest particles, ranging from very fine smoke particulates to larger pollen particles. Finally, the optional ionizer charges outgoing air for easier capture on the next pass. It's important to note that ionizers have been scrutinized and sometimes labeled as a health concern because they do produce trace amounts of ozone. If you don't want to worry about breathing very small amounts of ozone, this Coway air cleaner allows you to turn the feature off completely.
Although this Coway air purifier comes with a number of great features, it doesn't have the most impressive clean air delivery rates. The Coway's CADR scores are just under the average scores of the air purifiers we reviewed, meaning it is less effective at removing indoor pollutants than those machines with the best scores. However, the Coway AP-1512HH is still more than capable of cleaning your indoor air. This air purifier can make four air changes an hour, which means all the air in the room is pushed through the machine and its filters every 15 minutes. Like all the air purifiers we reviewed, this Coway cleaner uses HEPA filters, which are specifically designed to catch some of the smallest particulates.
The Coway does not have a sleep or quiet mode that you can use specifically at night to clean the air in your room without disturbing your sleep. However, it does have an auto mode that senses the air quality in the room and adjusts the settings to maximize the effectiveness of the machine.
Portability & Convenience
One of the best elements of this air cleaner is its small, lightweight design. While some machines are large, bulky and difficult to move around, the Coway AP-1512HH is one of the smallest purifiers we reviewed, allowing you to carry it from room to room as you need it. The purifier only weighs 15 pounds, making it the second-lightest machine we found, and includes a handle to help you move it easily. Unlike with some other machines we reviewed, you can carry this air cleaner up a flight of stairs without breaking your back.
You can set an operation timer to control how long the cleaner runs before shutting down. The timer runs for one, four or eight hours at a time. This is a particularly useful feature if you want the machine to run while you are at work or school and not while you're home. At the Coway's highest setting, it only produces 58 dB, meaning it is not too loud. For comparison, a whisper measures around 30 dB, while a telephone dial reaches about 80 dB. Even if you do run the purifier while you're home, the noise shouldn't be too noticeable.
The purifier also includes a filter monitor to let you know when you need to replace the HEPA filters. This is particularly useful, as you want to make sure you replace those filters routinely to retain the maximum cleaning capabilities of the machine. Additionally, the machine includes a pre-filter to capture larger debris such as hair and dust, which extends the life of the more expensive HEPA filters. However, this air cleaner does not include a remote control, which would allow you to operate it without having to get off the couch.
Energy & Certifications
This air purifier is Energy Star verified and rated to use up to 77 watts at its highest setting. During our testing process, we found the purifier only consumed around 59 watts on its highest setting, making this one of the most energy-efficient models we reviewed. This air purifier shouldn't impact your monthly home energy bills too much, as we estimated the annual cost to be around $27. The machine is both AHAM and ARB certified, meaning its CADR scores are verifiable and accurate, and it doesn't damage the air quality in your home.
Help & Support
Coway could use some improvements in its customer support offerings. The company does offer a three-year warranty, and its support representatives are available by phone and email. However, we had trouble contacting an actual representative to answer some of our most basic questions. You can download an owner's manual, which is especially helpful if you misplace the physical copy that comes with the machine. Unfortunately, the company lacks a FAQs page or a live chat option. This means you have to find answers to your questions on your own.
The Coway AP-1512HH is the best small-room air purifier because it offers numerous cleaning options and a highly efficient design. Its compact size and quiet operation belie its strong filtration capabilities. It is one of the most energy-efficient models we reviewed and comes with many of the certifications and industry verifications we look for. This Coway air purifier has impressive filtration, simple controls and a small form factor for taking control of the pollutants in your home.