【Keeps The Cool Air In】-- The whole point of air conditioners is to cool the air. The window seal for portable air-conditioners kit keeps the cool air inside your room by effectively diffusing the hot air out of the window. Your AC will cool your room quicker and cheaper! The air con window vent kit also blocks flying insects and spiders from entering the room through windows or door seams.【Save Energy】-- This air conditioning window seal kit contributes to reduce energy consumption and to lower carbon dioxide emissions, which is particularly high in summer due to the massive use of air conditioning. The aircon window kit, a great solution saving your money on electricity bills and environment protection.【Convenient and Economy】-- Made of durable.