How often should I change the standard throw-away 1 filter?
You should change the standard 1″ filter every 6-8 weeks. Believe it or not, a filter actually becomes more efficient as it gets dirtier, up to a point. After peak efficiency is reached, the efficiency drops again. Make sure to inspect the filter and use your own judgement. Don’t let the filter get “clogged” as the can cut down on the efficiency and/or cause damage to the unit.
