How To Clean a Dryer Vent

About 4 months ago I was reading an article on the internet that filled me with concern, it was about statistics, it said that about 3,000 fires per year, are generated by clothes dryers, the accumulation of lint for lack of cleaning is the cause of these accidents.

I always thought that the filter that the dryer has trapped all that lint, but it is not so, there are many of this lint that get beyond where the filter is and cause blockages within the mechanisms of the dryer.

For this reason, I dedicated myself to researching how to clean a dryer vent, so I learned that not only is it enough to clean the extractor, but also to clean the dryer duct, vent hoseWrite and the entire area where they are located.

There are things that I have to check to know when I need to do the cleaning, to prevent the dryer from being damaged.

Signs that tell me it’s time to clean

I always pay close attention to these signs, they indicate to me that it is time to perform a thorough cleaning of the dryer’s ventilation system.

  • The time it takes to dry the clothes increases considerably.
  • At the end of the drying cycle, the clothes are warmer than usual.
  • From outside the dryer feels very hot.
  • On the outside of the ventilation, the flap does not open sufficiently, so there is not an adequate escape rate.
  • The inside of the dryer feels wetter than usual.
  • The inside of the dryer starts to smell of burning

Now I will tell you how to clean a dryer vent.

Materials and tools I use

  • Vacuum cleaner with long hose
  • Special brushes
  • Screwdriver
  • Insulating metal tape
  • Dry rags
  • Neoprene Gloves


  • First I disconnect the power cord from the dryer, and put on the Gloves
  • Then remove the lint trap filter, and clean it properly, removing all the lint you have, this is the easiest way I have, so that lint does not accumulate excessively.
  • I then turn on the vacuum cleaner and vacuum the inside of the housing where the lint is deposited, then with one of the small brushes, I brush the area to loosen any dust and lint that is stuck to the walls.
  • Then I vacuum again to remove all the lint that I have removed with the brush.
  • With a long handle brush, I carefully sweep the bottom of the cavity to remove the piles of lint that are deposited there, I vacuum the area over the bristles of the brush and gently brush the area again.
  • With the screwdriver I disconnect the duct, I remove the dryer from the wall, and I disconnect all the parts of this duct, with the smaller brush and long handle, I introduce it inside each part of the duct, and I make rotary movements to remove all the lint that exists inside the duct, this I repeat until already in the brush does not leave traces of lint.
  • I check the vent cover, clean it with the brush and then vacuum it, and check that the flap door is not stuck with lint.
  • I put the lint trap filter in place.
  • With the screwdriver I connect the duct in place, and seal the sections of the duct with the Insulating Metal Tape, I always take care not to deform the duct, as this would create spaces for lint to accumulate, and on the other hand a deformation of the dryer duct would cause my dryer to be damaged, then I carefully approach the washer to the wall.
  • Once all this is finished, I make a general revision, to make sure that everything is correctly in place.
  • I connect the power cord and turn on the dryer to make sure it is properly ventilated.

Something that I do normally and has given me efficient results, is that I have everything at hand when I get ready to clean the dryer, and I have a set of brushes exclusively for cleaning the dryer, I do not use them in other jobs, to keep them always clean and in good condition.

This way of cleaning the dryer has been very efficient and always leaves me satisfied, fortunately I learned it by researching on the Internet and reading the user’s manual of the dryer carefully.