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(11)

EP 3 990 191 A1

(12)

(43) Date of publication: 04.05.2022 Bulletin 2022/18 (21) Application number: 20832698.3 (22) Date of filing: 26.06.2020

(51) International Patent Classification (IPC):  B03C 3/12(2006.01) B03C 3/41(2006.01) H01T 19/04(2006.01) F24F 3/16(2021.01) B03C 3/019(2006.01) B03C 3/47(2006.01) H01T 23/00(2006.01) (52) Cooperative Patent Classification (CPC): B03C 3/47; B03C 3/41; H01T 19/04; H01T 23/00; B03C 3/155; B03C 3/60; B03C 2201/06; B03C 2201/10; B03C 2201/08; B03C 3/66; F24F 8/10; F24F 8/30 (86) International application number: PCT/SE2020/050672 (87) International publication number: WO 2020/263171 (30.12.2020 Gazette 2020/53)

(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: 28.06.2019 SE 1950823 (71) Applicant: CabinAir Sweden AB 104 51 Stockholm (SE)	(72) Inventors: WETTRE, Lars 117 40 Stockholm (SE) NILEVI, Lena 136 75 Vendelsö (SE) HELIN, Emil 116 28 Stockholm (SE) FODOR, Attila 147 32 Tumba (SE) (74) Representative: Zacco Sweden AB  P.O. Box 5581 114 85 Stockholm 114 85 Stockholm (SE)