(19)

(11)

EP 4 103 308 A1

(12)

(43) Date of publication: 21.12.2022 Bulletin 2022/51 (21) Application number: 21753066.6 (22) Date of filing: 15.02.2021

(51) International Patent Classification (IPC):  B01D 53/34(2006.01) A61L 9/14(2006.01) B01D 53/84(2006.01) (52) Cooperative Patent Classification (CPC): B01D 53/84; A61L 9/14; B01D 2257/708; B01D 2258/06; B01D 2252/103; F24F 2110/66; F24F 2110/20; F24F 8/117; Y02A 50/20; Y02B 30/70; A61L 2209/21; A61L 2209/11 (86) International application number: PCT/US2021/018133 (87) International publication number: WO 2021/163674 (19.08.2021 Gazette 2021/33)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 14.02.2020 US 202016792159 19.01.2021 US 202117152280 (71) Applicant: Clean Air Zone Inc. Corona NY 11368 (US)	(72) Inventors: HOYDA, Serge B. New York 11368 (US) MACPHEE, Corey Lee New York 11368 (US) DICKINSON, Gregg Russell New York 11368 (US) (74) Representative: Burger, Hannes  Anwälte Burger & Partner Rechtsanwalt GmbH Rosenauerweg 16 4580 Windischgarsten 4580 Windischgarsten (AT)