Air Filter by Ecogard®. Reliable filtration with broad coverage. Ecogard is your source for high-quality air filter products with extensive application coverage. Manufactured using advanced, high-efficiency media, Ecogard air filters are provided in a wide range of styles-including flexible panel, conical, rigid and round designs, both non-woven and cellulose. All Ecogard air filters are installation tested for correct fit, form and function to ensure trouble-free installation and performance. And you can count on Ecogard to get to market first with new air filter applications.