It is not possible to prevent dust. The closest that anyone has come to that is to have special rooms with controlled access that keeps out as much dust as possible. These "dust free" rooms are only found in laboratories.
In our homes, we can keep dust at a minimum by filtering the air that comes into the home, and some people use electrostatic generators (sometimes called ionizers) to attract the dust to the machine, out of the air.
From the "Sinus Wars" website:
Do not have carpeting, instead opt for wooden floors for example. - Use dust proof covers on bed mattresses. - Keep furnishings to a minimum, as these all collect dust. - Clean rooms thoroughly once a week - all surfaces - and allow the room to air. - To help with the removal of dust mites, a room must be vacuumed 4 - 7 times a week, and the vacuum should be cleaned after use.
Dust settles on the heating elements just like everywhere else in the home. When the element turns on the dust is burned off and the resulting smoke creates the residue.
to help prevent contamination from splash and dust
That depends upon just how much grease and dust we are dealing with here. Normally I would say, wash it off with soap and water, but if there is a large amount involved, you might want to first scrape off as much as you can with a spatula or other scraping tool, and then wash with soap and water. Ideally, dry afterwards with paper towels. You don't want to leave the walls wet, they could get moldy. Paper towels will also pick up any residue of grease and dust that were not washed off.
The best way to clean walls is using TSP. Follow the package directions for how to use it.
You should go online and read about your specific curtains, or find the tag if it is still intact. Most curtains are machine washable, and this is the best way to remove dust.
mixture of water and household bleach
The Walls We Bounce Off Of was created in 1994.
Bouncin' Off the Walls was created in 1983.
Bouncing Off the Walls was created in 2001.
Dust Yourself Off was created in 1975-07.
Matte paint should really only be used on low-traffic areas in your home. Semi-gloss should be used in bathrooms, kitchens or high traffic areas where you are going to want to wash down the walls. I don't like matte paint because when my walls get a skuff on them, I can't wipe it off without taking off the paint. On the other hand, when there is a skuff on the semi-gloss walls, it comes right off and the paint stays on.
Electric baseboard heaters can give off a black film on walls due to dust particles in the air being drawn towards the heater and then heating up and sticking to the wall when they come into contact with the warm surface. This can be more common in heaters that have not been cleaned or maintained regularly. Regularly cleaning the heater and the walls can help prevent this buildup.