(19)

(11)

EP 4 584 003 A1

(12)

(43) Date of publication: 16.07.2025 Bulletin 2025/29 (21) Application number: 23861734.4 (22) Date of filing: 08.09.2023

(51) International Patent Classification (IPC):  B01D 45/18(2006.01) B01D 45/16(2006.01) B01D 46/24(2006.01) B01D 46/44(2006.01) B60H 3/06(2006.01) B01D 45/12(2006.01) B01D 46/00(2022.01) B01D 46/42(2006.01) B01D 50/20(2022.01) (52) Cooperative Patent Classification (CPC): B01D 45/16; B01D 45/18; B01D 50/20; B01D 46/2411; B01D 46/0004; B01D 46/0027; B01D 46/4245; B01D 46/448 (86) International application number: PCT/AU2023/050872 (87) International publication number: WO 2024/050608 (14.03.2024 Gazette 2024/11)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 09.09.2022 AU 2022902610 (71) Applicant: Work Air Technologies Pty Ltd Wangara, WA 6065 (AU)	(72) Inventor: KNOWLES, Gregory Wangara, Western Australia 6065 (AU) (74) Representative: Hindles Limited  Clarence House 131-135 George Street Edinburgh, EH2 4JS Edinburgh, EH2 4JS (GB)