Sinus infection is the leading cause of yellow-colored mucus. The sinuses are more prone to infection due to its role in keeping the air that enters the body clean and moistened. It also creates a lot of mucus to catch particles, bacteria and viruses that may harm the sinuses and the entire body.
Convert your existing sliding door into a fully automatic door! Autoslide is an automatic sliding door system which is attached to existing manual free running patio, internal and sliding screen doors, to enable the door to open and close automatically. No more pushing or pulling of the doors.
Open track and flat track were the earliest styles of sliding door systems first used for barn and stable door operation, and later for garage door application. These rudimentary track systems were dirty, dangerous, and prone to having the trolleys unseat from the track, taking the heavy doors with them. Enclosed box track was invented in the 1930s.