The 35-pound beams lock together to make a rigid base for the tower. The legs on the corners of the base adjust up and down over a 5-foot range to make up for uneven floor levels. The new, patented, Light Bulb Scaffoldâ¢ System is the solution to all your access problems.
Acid reflux is the most common cause of chronic laryngitis. But chronic laryngitis may be caused by more severe problems such as nerve damage, sores, polyps, cancer, or hard and thick lumps (nodules) on your vocal cords. The vocal cords are the vibrating elastic bands inside the larynx that produce your voice.
The most common cause, however, is an infection, which could be either viral or bacterial. Inflammation can also be caused by some serious medical conditions such as tonsillitis, bronchitis, or even pneumonia. If caused by an infection, the disease causing the laryngitis may be contagious.An infection of the upper respiratory track, such as a cold or the flu, can often cause laryngitis.acterial laryngitis is contagious, and it's usually acquired from somebody else who is already sick. It can be spread until a day or two after the last symptom has disappeared and if the infection is serious, this may take several weeks.