OMG you guys, this little plastic wing has saved my sleep! My mini-split AC was blasting Arctic winds directly onto my face every night. Tried DIY solutions (cardboard + duct tape = tragic) before finding this gem.
The installation took literally 45 seconds - peel the adhesive, stick it on, done. The adjustable length (54-70cm) fit perfectly under my unit. Now the air gets redirected upward while still cooling the room evenly.
Pro tip: The wave-pattern surface actually prevents condensation (unlike that sketchy Amazon knockoff that dripped water everywhere). After 3 months of daily use, the adhesive still holds strong even during heat waves.
Only con? Wish it came in black to match my modern bedroom aesthetic. But for $25? Absolute steal compared to paying an HVAC technician to relocate vents!