Which brands of photocatalyst are good?

Top Ten Photocatalyst Brands: 1 Aoin (high-tech enterprise focusing on indoor pollution control, drafting unit of national photocatalyst standard (photocatalyst for air purification)) Guangzhou Aoin Environmental Protection Technology Co., Ltd. 2 3M( 1902), an internationally recognized research and development pioneer, a global diversified technology enterprise, top ten brands of water purifiers, 3M China Co., Ltd.) 3 Bi Hua (high-tech enterprise, Member of Beijing High-tech Enterprise Association, with many cutting-edge technologies and products selling well at home and abroad, Beijing Bi Hua Environmental Engineering Co., Ltd.) 4 Lister (an emerging high-tech enterprise integrating research and development/production/sales of photocatalyst products, member of China Interior Decoration Association, Guangzhou Lister Environmental Protection Technology Co., Ltd.) 5 Oti (Dalian High-tech Enterprise), the drafting unit of the national standard for liquid air purification photocatalyst, Top ten brands of photocatalyst, Dalian odell Technology Development Co., Ltd.) 6 Nalmei (vice president of China Photocatalytic Association, member of ISO international standard working group for photocatalytic materials, industry standard drafting unit, Chengdu Naermei Environmental Energy Technology Co., Ltd.) 7 Zhihua Ling (affiliated to Mitsubishi, Japan, with a number of cutting-edge knowledge and high-tech production technology, its product industry has a high visibility and reputation, Beijing Zhihua Ling Environmental Protection Technology Co., Ltd.) 8 Rong Yuan (a high-tech indoor environmental protection company integrating R&D/ production/sales/service, Shanghai Rong Yuan Environmental Technology Co., Ltd., a leading domestic indoor environmental pollution control enterprise) 9 Tomorrow (Guangdong high-tech products, with a number of national patents, photocatalyst national standard drafting unit, Dongguan private technology enterprise, Dongguan Tomorrow Nano Technology Co., Ltd.) 65,438+000000000 net million.