## Primary/Medium Filter Cotton
Various materials and specifications of filter cotton, used for primary filtration or in the spraying industry.
### Main Series
- **White Fluffy BT Series**: Filters dust larger than 5μm, strong flame retardancy.
- **Needle-punched White NJ Series**: Fibers are tightly combined, break-resistant, and corrosion-resistant.
- **Green and White Paint Mist Felt**: Uses progressively structured glass fiber, high temperature and acid/alkali resistant.
- **Ceiling Cotton**: Selected excellent filter media, widely used in the spraying industry.
