In Nevada’s desert climate, most homes benefit from air duct cleaning every 2-3 years rather than the typical 3-5 year recommendation for other regions. The constant presence of fine desert dust, seasonal dust storms, and high winds mean your ducts accumulate contaminants faster than in more temperate climates. If you have family members with allergies or respiratory issues, or if you notice dust accumulating quickly after cleaning your home, annual cleaning may be worth considering. Homes with pets, smokers, or recent construction work should also lean toward more frequent cleaning. The key indicator isn’t just time – it’s what you’re seeing and experiencing. If you’re dusting furniture more than twice a week, if family members are experiencing increased allergy symptoms, or if your energy bills have crept up without explanation, it’s probably time regardless of when you last had the work done.