Why Dryer Vent Cleaning Is More Important in Humid Climates Like Portland Portland’s lush greenery, cool air, and frequent rainfall make it one of the most beautiful cities in the Pacific Northwest. However, that same humidity that keeps the plants thriving can quietly cause problems inside your home — especially for your dryer vent system. Many homeowners don’t realize that humidity and moisture play a major role in how often you need dryer vent cleaning Portland OR . Unlike