My Vacuum Cleaner Is Trying to Kill Me

  That would be the Hoover  Wind Tunnel. emerging from semi-retirement. I succumbed to the lure of TV advertising a few years ago and invested in the SHARK ROCKET.  It's light and easy to use, and seems to  have done a satisfactory job. The local stores didn't carry the bags for the Wind Tunnel any more, so I just gave up on it.
    Several weeks ago, at  Maybe's visit to the vet's, she raised a red flag about fleas, and prescribed preventive medication for her. We had the carpet professionally cleaned, and I vacuumed the floor every day after that, or as close as I could get to that goal.
   Now that I have Amazon Prime, I order boring stuff for the house, like filters for my Black & Decker Mini-Vac along with refills for the Breeze cat litter box.  So I added in the order for the Type Y bags for the Wind Tunnel.
    The order arrived in a few days and I decided to re-activate the Wind Tunnel. It was hard to resist the lure of the baby blue bags infused with Febreze. Now the thing about the Wind Tunnel is that, among its other features, it has a sensor that lets you know when each area is cleaned. The light turns from red to green when the dirt is gone. I remembered working that issue. But this time, it's hard work. I make pass after pass over the same area until the light changes. Or so I should, but I can't do it anymore, so I quit waiting for the light to change after several sweeps.
   The carpet can't be that dirty yet, I think, but when I checked the pleasant-smelling Febreze bag, it was about a third full of just plain dirt, not cat hairs or lint, but plain, heavy, dense dirt. I have to go back to the Shark, until the housekeeper comes to use the Wind Tunnel.