India, Oct. 18 -- A home is not just a place that holds all of your favorite things and memories. It's also a place that smells of your favorite dishes. But musty smell in the bedroom, black spots across the bathroom walls or dust that triggers sneezing can make your home feel less comfortable than it should be. While cleaning and ventilation are important first steps, the right appliance may help tackle the problem heads on. The tricky part, however, is knowing whether you need an air purifier or a dehumidifier.

An air purifier is designed to improve indoor air quality by filtering airborne particles such as dust, pollen and pet dander. Models with HEPA filters can also capture airborne allergen particles, which makes them worth conside...