ECOGARD ® CELL ECOGARD® Cell is a special flame retardant for materials consisting mainly of cellulose. ECOGARD® Cell is halogen-free and therefore particularly environmentally friendly. ECOGARD® Cell protects all absorbent materials made from wood, paper, paperboard, cardboard and any articles made from these materials. The state-of-the-art formula used in ECOGARD® Cell makes sure materials remain soft to the touch and largely prevents the formation of salt scum and other stains on remoistening. ECOGARD® Cell is certified pursuant to  ÖNORM A3800, B1, Q1, Tr1.