Dust masks which is good?

Recommended: 3M dust masks, Green Shield dust masks, Honeywell Honeywell dust masks, UVEX dust masks, Kowa three-dimensional dust mask

1, 3M dust masks

Founded in 1902, the United States, the world's top 500 companies, internationally recognized as a pioneer in the field of research and development, has been a global diversified science and technology enterprises. 3M China is committed to developing suitable for the development of the world's leading research and development company. 3M China is committed to developing innovative technologies and products that meet the needs of local markets and customers, and focusing on the cultivation of innovative talents. Currently, 3M China has more than 700 local R&D personnel, contributing to more than 1,000 local patented inventions, and playing an extremely important role in 3M's global R&D network.

2, Green Shield dust mask

Top ten brands of masks, the drafting of industry standards, well-known health textile experts, China Antibacterial Association vice president of the unit, a collection of research and development, design, sales as one of the enterprises. The company developed both ultra-micro antibacterial and ultra-micro filtration microfiltration materials, and as a basis for the production of Greenshield PM2.5 mask series products.

3, Honeywell Honeywell dust mask

Began in 1885 in the United States, the world's top 500, aerospace/automation control systems/transportation systems/specialty materials and other areas of the professional industry solutions provider, diversified high-tech large multinational groups. Honeywell Safety and Productivity Solutions Group provides mobile industrial computers, voice software and workflow, barcode scanners, printing solutions, gas detection technology and personal protective equipment for more than 500 million operators worldwide to help improve operational safety and accident response, optimize workflow and enhance business performance.

4, UVEX dust mask

protective supplies top ten brands, founded in 1926 in Germany, personal safety and protective equipment in the field of the well-known supplier, for human in the work, sports and leisure activities to provide the best protection. The UVIS Safety Group consists of four strategic development centers: head protection (safety glasses / corrective safety glasses / laser protection safety glasses / safety helmets / hearing protection / respiratory protection), torso protection, foot protection and hand protection.

5, Kowa three-dimensional dust mask

Kowa three-dimensional, began in 1894 in Japan, Xinghe Co., Ltd. of the company, focusing on health, medical, chemical multiple fields, set mask production, manufacturing, sales and trade as one of the enterprises. The Kowa Group not only maintains the fiber business since its foundation, but also presents global advantages from the field of fine chemicals to the development and utilization of resources and international investment in urban infrastructure in developing countries on all five continents, represented by "LIVALO (LIVALO)", a pharmaceutical product whose sales are expanding.