Most PC Users have replaced their Desktop Bulky Monitors with a sleeker version ie the LCD Screens which use lot less desk space, lower power usage which means you save up a lot of power bills while using these sleeky screens. Most of these screens attract dusts towards them because of the static electricity produced on it and most people would just use their normal home cloth and rub over the screen to clean off the dust. Sometimes the cloth is made wet to wipe off all the dust but ultimately you are doing bad for your LCD screen because implementing this process this way can add some scratch or dead pixels.
Here is a better solution which should be implemented in order to clean your LCD Monitors for a lower cost. Get some 70% Isopropyl alcohol from your local market and add it to Distilled Water in equal quantities. Mix both of these in a empty bottle and use a soft piece of microfiber cloth for starting your cleaning process. You should next dip the cloth in the liquid and slowly start wiping it from the top to the bottom of your screen. Dont be too harsh and slowly wipe all over your screen to clean it from that dark dust. Make sure you use distilled water instead of normal tap water because when you use normal water there are some white marks left on the screen because of the salt within the water.
If you dont want to spend time by buying those liquids and chemicals and risking yourself, check out for branded Alcohol free LCD Cleaners. Recently i found our that there are many other options for this thing like using the Eye Glass Cleaners and in case of the cloth you can try out with soft old Tshirt cloth which also perform the same job. You can also try out Toothpaste along with a cloth as a washing agent because its also not much harsh on the screen since its already used no your tooth and its not much harmful, though these home type options are normally referred by general public and there may be many more alternatives to those branded monitor cleaning solutions.