Air cleaners work to make your home’s indoor air quality healthier by removing polluting particles like dust, pollen and pet dander. Levels of filtration efficiency range from minimal filtration that removes relatively large particles to hospital-quality filtration for microscopic bio-contaminants. Filtration considerations include the presence of pets, as well as inhabitants with allergies, asthma and other respiratory and health concerns. McElroy’s indoor air-quality experts can help you determine, install and maintain the air cleaning system and filtration level that best meets your health and comfort needs – including regular filter replacement.