Filter direction - DoItYourself.com Community Forums
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Which way does the air flow? : r/HVAC
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Airflow direction? Central heat AC unit which is forced air. Red arrow was my guess after looking online, but the filter was pointing the opposite direction. Dumb, I know. : r/hvacadvice
National Property Inspections - A common mistake on furnace filters is air flow direction. Arrow on this filter should be slanted down. Remember to Change it as needed every 1-3 months. Air
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![Air Flow Direction? See Comments [Lennox EL296UH090XE48C-03] : r/hvacadvice](https://i.redd.it/air-flow-direction-see-comments-lennox-el296uh090xe48c-03-v0-3pjsw3ya2b7a1.jpg?width=3120&format=pjpg&auto=webp&s=7414466f17c9e6a670035387e4183e66f4672389 "Air Flow Direction? See Comments [Lennox EL296UH090XE48C-03] : r/hvacadvice")
Air Flow Direction? See Comments [Lennox EL296UH090XE48C-03] : r/hvacadvice
Which direction should the airflow arrow point on my air filter?
