The design of this warning sign boldly states the need to check SDS for correct respirator filter type. The legend ?WARNING - RESPIRATOR AREA - SEE SDS FOR CORRECT FILTER TYPE? meant to warn facility workers and other employees to not go inside a toxic and polluted area without a proper respirator fitted with the correct filter. This respirator sign comes with pre-drilled holes that allow it to be mounted on to a fence or wall. The rectangle-shaped respirator required sign also has the NMC Sign Muscle coating to help protect the text from moisture, mold, scuffing, fading and scratches. The UV-cured, clear coating creates a durable bond and boosts color and clarity. It features a Black/White head graphic with a full-face respirator on White base while the text is in Black/White over Orange/Black background.