Industrial research on dust trapping efficiency by the fiber filter in aspiration shelters of reloading units

О. o. lapshyn, Dr. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0001-8844-6354, v. А. Shapovalov, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0002-5965-2869, m. v. Khudyk, Cand. Sc. (Tech.), orcid.org/0000-0002-1155-2535, o. l. Shepel, Cand. Sc. (Tech.), orcid.org/0000-0003-4581-5441 State Higher Educational Institution “Kryvyi Rih National University”, Kryvyi Rih, Ukraine, e-mail: ajax2805@gmail.com