The answer to 'why is my countertop dusty' is that it's a common issue caused by a few key factors. Dust can accumulate on countertops due to poor air circulation, lack of regular cleaning, and the natural shedding of materials in the home. This can result in a thin layer of fine dust covering the surface.
Some common causes include: dry air from HVAC systems, proximity to windows that let in outdoor dust, and materials like wood or stone that naturally shed small particles over time. Symptoms include a dull, hazy appearance and gritty texture when running your hand across the surface.