However the focus should be to determine what is causing the itch. If it is dry skin, then a good beard oil or beard balm will help to moisturise the skin and hair. When applying the oil or balm, it is a good idea to draw it upward from the bottom of the beard, against the grain. Brush it up against the grain several times before patting it back down.
Filtration is commonly the mechanical or physical operation which is used for the separation of solids from fluids (liquids or gases) by interposing a medium through which only the fluid can pass.The fluid that passes through is called the filtrate. Filtration is used to separate particles and fluid in a suspension, where the fluid can be a liquid, a gas or a supercritical fluid. 2  Depending on the application, either one or both of the components may be isolated.
Filtration is a separation technique that is used to separate a solid that has not dissolved in a liquid (for example a precipitate). A filter paper is placed inside a glass funnel and a container put beneath. The mixture of the solid and liquid is placed into the filter paper.The liquid flows through the filter paper and in to the container. The liquid in the container is called the filtrate. The solid that remains in the filter paper is called the residue.The residue can be dried by spreading it out on the filter paper and allowing the liquid to evaporate.he liquid flows through the filter paper and in to the container. The liquid in the container is called the filtrate. The solid that remains in the filter paper is called the residue.