How does a clogged vent affect fire risk?

How does a clogged vent affect fire risk?

• A. It decreases fire risk by cooling lint.
• B. It increases fire risk by causing a buildup of hot lint that can ignite.
• C. It has no effect on fire risk.
• D. It makes lint wetter and less combustible.

Answer: (B)

When airflow is restricted, heat from the dryer isn’t carried away efficiently, so hot lint accumulates in the vent and around components. Lint itself is highly flammable, and as temperatures rise due to poor exhaust, that lint can ignite. A clean, open vent keeps temperatures lower, removes lint, and reduces the chance that lint will catch fire. So the idea that a clogged vent raises fire risk by causing a buildup of hot lint that can ignite is the best answer. The other options don’t fit because a blockage does not cool lint, nor does it have no effect or make lint wetter and less combustible; in fact, it increases the likelihood of combustion-related hazards. Regular vent cleaning is a key safety practice to prevent dryer fires.

When airflow is restricted, heat from the dryer isn’t carried away efficiently, so hot lint accumulates in the vent and around components. Lint itself is highly flammable, and as temperatures rise due to poor exhaust, that lint can ignite. A clean, open vent keeps temperatures lower, removes lint, and reduces the chance that lint will catch fire. So the idea that a clogged vent raises fire risk by causing a buildup of hot lint that can ignite is the best answer. The other options don’t fit because a blockage does not cool lint, nor does it have no effect or make lint wetter and less combustible; in fact, it increases the likelihood of combustion-related hazards. Regular vent cleaning is a key safety practice to prevent dryer fires.