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(11)

EP 4 247 442 A2

(12)

(88) Date of publication A3: 01.09.2022 (43) Date of publication: 27.09.2023 Bulletin 2023/39 (21) Application number: 21907333.5 (22) Date of filing: 15.12.2021

(51) International Patent Classification (IPC):  A61L 9/015(2006.01) A61L 9/14(2006.01) A61L 9/18(2006.01) A61L 9/22(2006.01) (52) Cooperative Patent Classification (CPC): A61L 9/16; F24F 2221/12; F24F 8/10; F24F 8/20; B03C 3/38; B03C 3/017; F24F 8/00; A61L 9/015; A61L 9/20; A61L 2209/14; A61L 2209/111; F24F 2120/10; F24F 2110/70; F24F 2110/74; F24F 2120/00 (86) International application number: PCT/US2021/010060 (87) International publication number: WO 2022/132196 (23.06.2022 Gazette 2022/25)

(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: 15.12.2020 US 202063125701 P 15.02.2021 US 202163149581 P 04.03.2021 US 202163156598 P 10.03.2021 US 202163158983 P 11.04.2021 US 202163173443 P 02.05.2021 US 202163182964 P 26.05.2021 US 202117331239 01.06.2021 US 202163195608 P 03.06.2021 US 202163196565 P 21.06.2021 US 202117353341 30.06.2021 US 202163216644 P 16.07.2021 US 202163222638 P 03.09.2021 US 202163240795 P 04.10.2021 US 202163251855 P 26.10.2021 US 202163271933 P 28.10.2021 US 202163272907 P 28.11.2021 US 202163283524 P (71) Applicant: Air-Clenz Systems LLC Atlanta, GA 30305 (US)

(72) Inventors: BLUM, Ronald Atlanta, GA 30305 (US) BROACH, Anita Christiansburg, VA 24073 (US) LOEB, Jack Fisher Island, FL 33109 (US) SHELDON, Stuart Atlanta, GA 30305 (US) (74) Representative: Forresters IP LLP  Skygarden Erika-Mann-Straße 11 80636 München 80636 München (DE)