In a recent cleanability study conducted by NSF, it was clearly shown that FUSED utility brushes are more easily cleaned than staple-set utility brushes, resulting in up to 50% less bacteria in just one exposure to either Staphylococcus aureus or Salmonellatyphimurium bacteria. "The data illustrates that brushes with fused bristles are easier to clean than those with staples. It is very important to make sure that the base area is reached during cleaning, especially the area along the seam between the bristle and base when the bristles are attached by staples. Thorough cleaning is essential for effective removal of bacteria from brush surfaces."

   Other laboratory studies have shown that natural fibers, horse hair and nylon filament, which are hydrophilic in nature, can absorb bacteria and viruses when used in aqueous solutions, and then release the bacteria and viruses at some later time. Polypropylene filament does not absorb water, therefore it can not absorb organic or inorganic substances. Tucel's patented fusing process was developed some years ago in order to eliminate drilled holes in brushware blocks. When comparing fusing to staple-set brushware, there is no "pocket" for harboring foreign or pathogenic materials. Also, if one were to cut open other fibers and polypropylene filaments, there would be residues of absorbed material in the natural fibers, horse hair and nylon, while the polypropylene filament would be clean and uncontaminated. Tucel's brushware is strongly recommended for use in all cleaning applications except where extremely high heat requirements are necessary