▎ 摘　　要

NOVELTY - Producing a filter material with hydrophobic and bactericidal properties comprises producing base material in the form of an additively produced polymer material from poly(lactic acid), polycaprolactone, polyamide, poly(vinyl chloride) and polypropylene, with open-cell porosity and a flow resistance of 30± 10-3/dm3to 5 hPa, 60x 10-3/dm3to 12 hPa and 90x 10-3/dm3to 20 hPa, subjecting to surface modification by immersion in a sonicated solution of reduced graphene oxide in a swelling liquid, then annealing it and washing the annealed material in an aqueous solution of alcohol. USE - The method is useful for producing a filter material with hydrophobic and bactericidal properties, intended for tracheostomy, preferably insertion into a tracheostomy tube. ADVANTAGE - None given.