No matter how great your knowledge of protection may be, unfortunately nothing protects a person 100% from negative energies that come to us and into us from the surrounding space.
Even a simple handshake with a person who envies you can disrupt all kinds of protections against envy, because you yourself gave “permission” for it through the handshake — that is, you yourself opened the protection against negativity.
Of course, maintaining energetic cleanliness is almost one of the first practices in energetics; cleansing an apartment or house of negativity is already much more complex, but it also needs to be done.
There are special “trainings” that allow you simply “not to accept” negativity into yourself, even without any “filtering” settings and so on. But even possessing such skills, sooner or later you will have to engage in cleansing.
And if a person does not live on the top floor, and lives on the first floor of a multi-story building — then cleansing objects will be very useful, because the entire stream of this negativity coming from all the upper floors through the first floor is hard to remove constantly by hand.
When the need arises, various objects can be used, including amulets and talismans, both for yourself and for the home, which will independently clear negativity. Some simply “draw in” all the negativity and afterwards require separate cleansing.