How to Clean Ceiling Air Vents, Starting With How One Goes In

The joke is a caveman bit: we're not cavemen, Bob, we have technology. The technology is a new system going in.

Outside, a SwiftPro tech with a dark beard and camo hoodie crouches at the sided wall of a house and drills beside a bundle of insulated refrigerant lines. A bundled line set heading through the wall like that usually means a mini-split or a similar system.

Inside, a second tech on a ladder fits a long ceiling-mounted supply grille into its opening. A long, narrow grille spreads air along a room instead of blasting it from one spot. The clip closes on the SwiftPro van driving up the street.