When using one of these, you can cover the outdoor vent with a pest/rodent-resistant cover only or another standard vent flapper kit.

LOWELL – Police are trying to figure out who took two iron air vent covers out of City Hall and stashed one of them in the bushes outside Wednesday night. Between 6: 30 p. m. and 8: 30 p. m., someone ...

Key Points Clean air vent covers to avoid bad air, high bills, and mold.Use soap, water, and a brush for a quick clean—just dry them well.Wipe vents every few months and inspect the system every ...