Sunnatov Zafar Ubaidullaevich, Norinov Fakhrier Kurbonovich, Rakhmonkulov Murod Turdialievich and Boykobilova Makhliyo Makhmudovna 2021. METHODS FOR INCREASING THE EFFICIENCY OF AIR COOLING DEVICES. International Engineering Journal For Research & Development. 6, 3 (Jun. 2021), 3. DOI:https://doi.org/10.17605/OSF.IO/SHN6W.