Yahoo! News reports that 75 percent of homes have unwated ‘dust bunnies’ that aggravate allergies.

In an air quality survey, more than half of residents said that someone in their home suffers from allergies, yet only 25% of households report using an air purifier or humidifier – and only 58 percent report that they changed their furnace filters in the past six months.

See When's the Last Time You Changed Your Furnace Filter? to learn more about the importance of this task.