Keep the dryer's outdoor exhaust path clear and intact
A crushed, loose, or restricted exhaust path can lengthen drying time and contribute to a dryer fire.
When it usually needs attention
Ongoing home-care habit
CPSC calls for safe dryer exhaust maintenance; the exact route and cleaning timing depend on the installation and observed performance.
When this guide applies
Applies only to a confirmed vented clothes dryer.
What to do
Watch the outdoor exhaust while the dryer runs, look for a damaged or loose connection without moving the appliance, and arrange qualified cleaning or repair for a restricted or concealed run.
Applies when: Applies only to a confirmed vented clothes dryer.
Who should handle it: Residents may observe accessible ends of the exhaust path; landlords, associations, or qualified providers may control concealed or shared runs.
Tools
- Flashlight for a ground-level visual check
Parts and supplies
- No replacement part or cleaner for observation
Safety gear
- Dust mask if lint causes irritation
Before you start
- Leave the dryer and connected duct in place
Power, water, or fuel shutoffs
- Turn the dryer off and let it cool before inspecting visible connections
Cleaner or chemical limits
No spray, solvent, degreaser, or fragrance is used inside the dryer or connected duct.
Stop and get help when
- Do not move the dryer, disconnect a gas line, or reach into concealed ducting
- Stop using the dryer and arrange service if the exhaust is blocked, damaged, or overheating
Who to call: Use qualified dryer-exhaust service for concealed, roof, long, or shared runs.
Reviewed sources
- Clothes Dryer Fire SafetyU.S. Consumer Product Safety Commission · reviewed July 13, 2026