September 12, 2013 – Ergodyne has expanded its N-Ferno warming products to include the FR 3-Layer Extreme Series winter liners (available in regular and shoulder length), and the FR 2-Layer Cold Series H&L mouthpiece.

The winter liners (#6890 and #6892) use 3M FR Thinsulate as the insulating mid-layer, and the mouthpiece offers adjustable face protection that fits perfectly with any Ergodyne FR winter liner. All Ergodyne N-Ferno FR winter products meet the requirements of ASTM F1506, and will not melt or drip. Meantime, the winter liners sport hook-and-loop attachments for hard hat suspension.