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.
N for n, N to-inf (=reason) Only a few people can find any cause for celebration..., Both had much cause to be grateful for the secretiveness of government in Britain. 4 n-count A cause is an aim or principle which a group of people supports or is fighting for. Refusing to have one leader has not helped the cause. 5 You use cause and effect to talk about the way in which one thing is caused by another. ...fundamental laws of biological cause and effect.