The MSA Filter Self-Rescuers W65-2/W65 and W 95 are Air-Purifying Respi rators for one-time escape use providing protection against toxic carbon monoxide (CO) and other gases emitted in underground mine fires or explosions. The Filter Self-Rescuer is immediately ready-for-use after opening and removal from the container. It has a Latex-free mouthpiece and nose clip to reliably protect the user from the contaminated ambient air. The adjustable head harness allows for a tight fit and hands-free usage. The sturdy stainless steel container is hermeticly sealed, providing long-lasting protection for the respirator.