Perhaps you have childhood memories of your grandmother placing a bowl of water in the corner of the room. Why did she do that? Maybe so that there was water nearby for watering flowers? Or for wet cleaning? None of the options. The basin of water had a completely different purpose - to increase the humidity in the room.
The reason is quite banal - dust. When there is enough sunlight in the room, it is especially noticeable. And all this dust ends up in the air, it is enough just to walk or pick up some thing. Of course, wet cleaning will significantly reduce its amount. But not everyone has free time for this. So it would be good if the dust settled and “waited” for the time to wipe it. But instead, it flies in the air for a long time.

This is why you need to increase humidity. Dust becomes heavier and settles on surfaces. From there, it can be removed more easily with a rag than if it flies around during cleaning. And thanks to this, most of the dust will stay at the bottom, and not rise up and settle on surfaces. And the easiest way to increase humidity is with a regular bowl of water. But it is still not the ideal solution for this.
Yes, our grandmothers used this very life hack because they had no other options. But today there is a lot of technology that works much better. We are talking about automatic air humidifiers that can maintain an optimal level of 40 to 60%. Some models can also purify the air from dust and allergens. And if you add a few drops of essential oil to the water, it will also aromatize the room, and tea tree oil will also disinfect the air.