Ventilation in daiy life. Who needs it? – “Between Four Walls” with Mantas Mikociunas @Ziniu radio

The story of heat recovery. Where did it all start? How did it evolve? Ventilation units are often confused with air conditioners, what are the main differences? Is it possible to have heat recovery system in old houses/apartment blocks? How much can I pay to install a recuperation system in my home? What practical advice can be given to listeners?
Interview with Zilvinas Salialionis, CEO of OXYGEN, on Ziniu Radio.