Replacement Filter. Keep your home odor-free while improving air circulation with this replacement filter. Filters should be changed every 6 months for maximum performance. Measure your current filter to assure correct replacement.About JennAirDefying physics with the invention of downdraft ventilation, Lou Jenn forged the path to an open concept and changed the kitchen forever. Founded in that progress, JennAir fearlessly carries his torch - determined on burning down the tired conventions of luxury. JennAir crafts distinctive luxury kitchen appliances that push form and function to transform spaces. With exceptional performance, masterful execution, and provocative design, JennAir offerings are powerful, yet bespoke to individual tastes, shattering norms to deliver the progress that today's luxury consumer deserves.