Filter Toxins Out of Your Home and Business in Ellicott City, MD and surrounding areas ASK ABOUT OUR AIR PURIFICATION SYSTEM OPTIONS Our purification systems go above and beyond typical products. They are university and laboratory tested to reduce mold, mildew, and viruses. These systems are proven to reduce contaminants from influences like pet hair or in-home moisture build up. Filtration systems and purifiers eliminate future damage to air quality. Other common contaminants, such as pollen, pet dander and dust, can make their way into our homes and businesses. With an air purifier from Aerus, you can get rid of those contaminants quickly to help you breathe easier. . Our company in Ellicott City, MD offers a wide selection of air purification systems, including reverse osmosis systems.