In the spaces list, right-click the space and select Hide space.

Or, when you're in the space, go to Information , click Notifications, select Off and Hide Space, then click Save.


 

When you hide a space, all notifications are automatically turned off for that space. But, you're still able to see hidden spaces in search results, and in your team's list of spaces. Also, if you hide a space that's in your favorite list, it's removed from the list.

You can hide all types of spaces, except direct message spaces with another person.