Should I clean the dryer vent?
It depends on how good the system was cleaned, how well it was maintained, and on the quality and the right installation of the filter.
If everything was done properly it should stay clean up to 2-3 years.
It also depends on the personal preference and some factors like:
- Seasonal allergies, that can be drastically reduced by annual air duct cleaning
- Home remodeling
- Moving to a new house
- If there are smokers in a house
- Vermins in a house
- Expecting a new baby in a house