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This video describes how to change your home heating and cooling system filter.
See more cool solutions on our website:
https://www.cooldavis.org/cool-solutions/
Cool Solutions checklist:
https://www.cooldavis.org/wp-content/uploads/2019/07/ChecklistFull_8.5x11_v1.4_07JUNE2019.pdf
My recent blog on home energy during shelter-in-place:
https://www.cooldavis.org/2020/04/01/shelter-in-place-and-your-home-energy/