Filters use an ‘OR’ logic within each category (results match any of the selected options in the same category), and an ‘AND’ logic between categories (results must match all selected categories).

EXAMPLES:
If you’re only interested in cap and level control systems, leave all the checkboxes in the “Equipment Type” section unchecked.
If you’re looking for suppliers that provide both a filler and a labeller, selecting both options will only display companies that manufacture both fillers and labellers.