Crossword clues for Protective layer 5 lettersAnswerClueOZONEGas in a protective layerLINERProtective layerOZONEProtective layerOZONEKind of layer protecting the earthOZONEVital part of the stratosphere's protective layerOZONEProtective atmospheric layerTESTASeed's protective outer layerSHIELDProtective layerSKINProtective layerOILSKINOuter-layer protectionHENProtective layerARMORSAdds protective layersSHEATHECover in a protective layerBARKTree's protective layerENAMELProtective tooth layerSEEDCOATSProtective botanical layersENAMELProtective molar layerSKINProtective outer layerPRIMERFirst layer of furniture protection