A dust particle is a tiny, solid fragment that can be found in the air, on surfaces, or in various environments. These particles can originate from many sources, including soil, pollen, pet dander, and industrial emissions. They are usually less than 500 micrometers in diameter, making them invisible to the naked eye. Dust particles play a significant role in the ecosystem and human health. They can carry allergens, bacteria, and viruses, potentially affecting air quality and respiratory health. Additionally, dust can contribute to the formation of clouds and influence climate patterns by affecting sunlight and temperature.