A bib-style filtering cover developed by Luminaud, Buchanan Laryngectomee Stoma Protector features absorbent 1/8 inches white foam in a soft cotton mesh cover. There covers are especially good for cold and dusty areas. The protector can by fastened via hand-tie or with the Ezi-tie adjuster. This unit can be washed several time by hand. This large unit's measurements are 5-1/2" (w) x 4-1/2" (h).