Panasonic IB200 ERV filters too expensive

I bought a panasonic ERV IB200 and the filters are 130$ canadian each which is ridiculous, I want to know what my options are? Are there companies that make these… I bought a panasonic ERV IB200 and the filters are 130$ canadian each which is ridiculous, I want to know what my options are? Are there companies that make these…Read MoreGreenBuildingAdvisor