Color:Blue Regularly remove loose hairs with a comb Wash occasionally in warm water ensuring that the air hole is covered Rinse and leave to dry away from direct heat and sunlight. 2.Your combs and brushes need to be washed based on your own practices of using hair products. Weekly washing is best. You will need to remove all hair and other materials on the brush or comb. I find a comb with larger teeth works great to remove this hair. Next you will need to fill a sink or plastic container with hot water and dish detergent (I use Dawn). Add your brushes and combs to this solution. Soak them for 15ï¾20 minutes before rinsing in cool water to get rid of the soap solution. The final step is to let them air dry. I do this by placing them on a clean towel. It is important not let anyone else use your combs and brushes. There are infections, like lice, that can be carried from one person to another via combs and hairbrushes.