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What is hidden in the ventilation ducts in a profile system, after we start using it? How much dirt and dust collects on the pipes? Well, find out in this video what you can do to inspect and clean the ventilation system, together with Nandor - our unicorn installer ????. _________________________ Find out more about how you can manage the site of your energy-efficient, sustainable and above all affordable house yourself through the House Construction Assistance Program of the Șoflete Academy: https://programasistenta.academiasofl... Join this channel to receive access to benefits: / @mariussoflete Link to Șoflete's Advice: / sfatuluiȘoflete Don't forget to follow us on: Facebook: / marius-soflete Instagram: / marius.soflete Website: https://soflete.ro/ Material created by Marius Soflete, Vlad Florea, Edward Negrea and Irina Solomon.