The Estonian company, Filaret, has set up collection boxes for cigarette butts in Tartu, ERR reports. Ines-Issa Villido, founder of Filaret, noted that around 300 tonnes of cigarette filter waste was created in Estonia every year, which equals to some 100 truck loads. Filaret’s collection boxes will stay at various locations in Tartu until the middle of August 2023. One collection box can hold around 6,000 cigarette butts, which is about 1 kg of waste that can be turned into bioplastic. Filaret has used the material to make 3D printing filament, Villido explained.