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.
The definition of a cause is anyone or anything that brings about a result. An example of cause is a washing machine making clothes clean. Cause means to produce a result. An example of cause is putting one foot in front of the other moves a person forward.