Due to the amount of dogs, dust and fur, I need multiple filters to remove all of the animals that are walking around my house. Dogs don't care that they take the whole street with them when they come into the house. They also don't vacuum or clean up their mess. Again and again I asked them to use the tools available to make the work easier. You're just arguing with me about opposite thumbs. But a vacuum cleaner that uses these excellent filters doesn't need your thumbs to operate it, you can just turn it on and off with your foot. I told them they could just put the hose in their mouths and drag it around to catch the dust balls under the sofa. A bunch of lazy free riders!