My son has something that is messing with him in his room. And we are thinking that it is because he has a lot of technology there. We have done several blessings with sage and put salt along the window pane and in his closet where we thought the spirit was coming from. How do we stop this from happening?

Either move him to the couch for a week, or move all the tech stuff out of the room for a week - a practical approach this time.

(Would be nice to know exactly what 'messing with him' means.)

Who ya' gonna call... GHOSTBUSTERS! There are many TV shows where experts come in with scientific measuring equipment as another source of discovery about the unknown. Have you seen any of them?

Joy's suggestion is a practical one though.

A real spirit is not going to be chases away with salt and things.
If it is sent away, if there is anything in the room, to allow the entry, it will just ocme back