1. Alen Corporation
2. Arovast Corporation
3. Aura Smart Air Inc.
4. Blueair AB
5. Coway Co. Ltd.
6. DuPont de Nemours Inc.
7. Dyson Technology Limited
8. Honeywell International Inc.
9. Koninklijke Philips N.V.
10. LG Electronics Inc.
11. Newell Brands
12. Olansi Healthcare Co. Ltd.
13. Sharp Electronics Corporation
14. Sunbeam Products Inc.
15. Unilever PLC
16. Whirlpool Corporation
17. Winix Inc.
18. Xiaomi Corporation