Midea/Comfee MPPB-14CRN7 two-hose efficiency boost

This intake adapter converts your single-hose portable AC into a dual-hose system. Instead of exhausting your room air and creating negative pressure (which pulls warm air in from outside), it draws in outside air directly to cool the compressor. This boosts cooling efficiency significantly. 

I used this hose https://www.amazon.de/dp/B0D583ZLHG?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1&th=1