Hello Before first use, put your PELLA cleaning cloth in the washing machine at a maximum of 40 to remove textile waste. ° Wash without using softener or add warm water and a little dish soap into a container and let it sit for 10 minutes. Take your Pella microfiber cleaning cloth, wash it with clean water, leave it slightly damp, and start cleaning on the surface you want. If you say you can't clean without medicine; You can clean with any detergent you want, except for chlorine and chlorine-containing products. Use your cloth folded for more efficient cleaning. Do not iron your cloth. All three glands perform the same function. The colors are for separation of cleaning areas in the place you will clean. One of the biggest features of the cloths is for general cleaning, on all surfaces (glass, mirror, kitchen, glossy surface, TV, countertop, inox, bathroom, faucet, sink, car, etc.). You will achieve perfect cleanliness without the need to dry with only water. Wipe it off and move on! It does not scratch, leave marks, stains, or dust, and never requires drying.