By default, every filter shows on every page. Display Rules let you control which filters show up where. Set them per filter. Go to WooCommerce, FilterKit Pro, click on any filter, and open the Display Rules panel.
Set display rules per filter: categories, devices, and conditions.
Show a filter only on specific categories. “Brand” only on Electronics, “Size” only on Clothing, “Storage” only on Phones. Each category page gets only the relevant filters.
Show on desktop, mobile, or both. Most stores show 6 to 8 filters on desktop and 2 to 3 on mobile to keep things clean on small screens.
Make filters depend on each other. Hide “Sub-Category” until the customer picks a main “Category.” Hide “Size” until they select “Clothing.” Keeps the sidebar short until the customer starts narrowing down.
If only 2 products in a category have a “Material” attribute, showing a Material filter there is pointless. Set a minimum (say, 5) and the filter hides itself automatically on pages with too few matching products.