Panel 2: Well, I still don't know much about central vacs. So does this mean the dust is just in the basement, or has it been coming out of the ports as well?
Panel 3: Elly is finally losing it. Her words are misspelled, the first letter is crooked, and her teeth are visible. Did she come upstairs to have her fit, or did April follow her to the basement?
Panel 4: I'm not sure why April looks so flabbergasted, unless there's a mirror in her sightline and she realizes that her nose is fast becoming potatoey.