What is the sources of dust?

1. Outdoor sources: Dust can come from soil, sand, pollen, and other particles carried by the wind from outdoor sources such as construction sites, unpaved roads, and agricultural fields.

2. Indoor sources: Dust can also originate from indoor sources such as human and pet dander, skin cells, fibers from carpets and furniture, and particles from cooking and smoking.

3. HVAC systems: Dust can be circulated throughout a building by heating, ventilation, and air conditioning (HVAC) systems that are not properly maintained.

4. Clothing and shoes: Dust can be tracked into a building on clothing and shoes from outdoor sources.

5. Pets: Pet fur and dander can contribute to dust accumulation in a home.

6. Insects: Dust can also come from insects and their droppings, particularly in areas where pests are present.

7. Mold and mildew: Dust can contain particles from mold and mildew growth, especially in damp or humid environments.

8. Household products: Dust can be generated from the use of household cleaning products, cosmetics, and other consumer goods.

9. Building materials: Dust can be produced from the deterioration of building materials such as paint, drywall, and insulation.

10. Industrial sources: Dust can come from industrial processes such as manufacturing, mining, and construction.