Dust, open land and construction nearby
Open ground, unpaved driveways and nearby building sites send fine dust into the air. Wind carries it onto patios and through screen doors, and dry spells make it worse. University Drive, Flamingo Road and I-595 are busy corridors where development continues, and construction dust can reach homes within a wide radius.
Properties with animals add hair, dander and bedding dust, which can clog filters and coils quickly. A horse or dog area near the house and a garage workshop both increase the amount of debris that a return grille can pull in. Cleaning the blower and coil often shows up as the first improvement.
