Volvo S70/V70 1998-2000 » Pollen Filter

70 series models have a pollen filter, which protects you and your passengers from pollutants and pollen entering your climate controlled environment. A plugged filter will reduce the comfort level and protection to you and your passengers against airborne contaminants. The filter should be replaced about every 20,000 miles for best comfort, however, it depends on conditions in your area.