Your cooling system depends on a clean ventilation system to work properly and keep your indoor environment healthy. To ensure that these things occur, you may change your air filter every three months and wipe down the outside covers of your air vents. But sometimes, even your best intentions can inadvertently cause issues with your ventilation system. For example, if your AC seems sluggish, or if your home feels stuffy and unclean, you may need to change your air filter sooner and clean out openings of your air vents.
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