Air purifiers offer a practical solution for cleaning the air in your home, removing a number of allergens and pollutants including pollen, mold spores, pet hair, smoke, and dust. We put the Coway AP-1512HH Mighty Air Purifier through its paces at home for a few weeks so we could see how it performed in real-world environments and situations. After a thorough evaluation, we found it to be a powerful and effective option with extensive features, earning an impressive 4.5 out of 5 stars from our at-home tester. The Coway AP-1512HH Mighty Air Purifier utilizes a four-stage filtration system, employing a pre-filter, deodorization filter, True HEPA filter, and vital ionizer to thoroughly improve the air quality of any room. The HEPA filter can trap 99.97 percent of particles larger than 0.3 microns, which is especially impressive compared to standard filters which can only screen particles larger than 2 microns. Our tester used the Coway Mighty in her open floor plan living room, and she said that she was able to notice its effects almost immediately: “We found in our testing that after only a few hours of use, the entire space smelled fresher—even with a dog in the home,” she said. One premium feature that’s unique to this product is its built-in air quality monitoring system, which allows users to detect changes in air quality. When the unit’s auto mode is turned on and a change in air quality is detected, the indicator changes color and its filtration speed increases. In addition to auto mode, you can manually choose from three different fan speeds and put it on eco mode, which shuts off the unit after detecting clean air for 30 minutes. The Coway Mighty also offers a timer setting, so you can keep it on for one, four, or eight hours. The features make for a user-friendly experience that’s easy to navigate, and our tester found that the air purification itself worked effectively. Not only did our at-home tester love the air purifier, but one of our editors, Dwyer Frame, raved about it as well: “I love my Coway air purifier. I’ve also tried other popular purifiers, but find the Coway far superior,” Frame said. “It changes colors when the air quality is bad, like after spraying cleaning chemicals, when our boiler started burning, and when we got new furniture. So satisfying and helpful!” Whether you want to combat allergy symptoms before they start, neutralize pesky pet odors, or simply monitor and improve the overall air quality in your home, the Coway Mighty is a worthwhile investment with a quiet and feature-rich performance. And while we loved the product, don’t just take it from us–with an impressive online rating of 4.7 stars and thousands of five-star reviews, this fan-favorite product is widely beloved. At 39% off through the end of Cyber Monday, you’ll definitely want to take advantage of this deal before it ends. Looking for more Cyber Monday deals? We’ve roundup up all of our favorite Cyber Monday deals into one place!