Unfortunately, most furnace filters are slid in place without an airtight seal, which allows air to pass around the filters. This problem is worse for the higher-efficiency MERV filters because of the increase in air resistance.
Common Cause is a network of people working to help rebalance cultural values to create a more equitable, sustainable and democratic society. 1  We are all shaped by our culture.
Common Cause is leading a coalition of organizations lobbying for filibuster reform. And we've taken the fight to court with a federal lawsuit challenging the constitutionality of the filibuster rule. We're working to restore majority rule AND protect the minority's right to be heard.