category F1: fireworks which present a very low hazard and negligible noise level and which are intended for use in confined areas, including fireworks which are intended for use inside domestic buildings;
F1-kategooria: väga madala ohutaseme ja minimaalse müratasemega ilutulestikud, mis on ette nähtud kasutamiseks piiratud alal, kaasa arvatud elamute siseruumides kasutatavad ilutulestikud;