{Charleston, West Virginia}...Clearon Corporation announced Wednesday afternoon it is temporarily shutting down its facility in South Charleston. The shut down begins in mid-September and continues for at least two months. About 45 to 50 workers will be temporarily laid off. Ninety other workers who handle sales will continue to work. Charleston Mayor Frank Mullens says the city could lose between $30,000 and $40,000 a month in B&O taxes if Clearon closes. Clearon produces chlorinated dry bleach that is used in swimming pools.