Description Active carbon filters: can remove 99.9-percent of dust,chemicals,fumes and particulates,cold proof, Effectively protect your health. Easy replaceable filters. Durable neoprene: comfortable to wear, adjustable velcro strap. Dual valve exhaust: expels moisture buildup and easy to breathe. Goliton® is a registered trademark protected by the EU Trademark Law. Goliton® products are sold by authorized sellers only.