Smoke trap: Latvian scientists have created a safe and ecological filter
Duration: 0:51:54
                
                    Scientists from the Riga Technical University are working on a special filter that can be used in private boiler rooms and fireplaces . Vladimir Kirsanov is one of the developers of a new technology that reduces particulate matter in smoke from private boilers by 80% while being energy efficient .
                        Language: 
                        Russian