Hot air shut off The window seal kit for portable air conditioners keeps cool air inside your room by effectively diffusing hot air through the window. Prevent hot air from circulating in your room. Keeping cool It can effectively reduce room temperature, allowing you to cool the interior during the summer. Protecting the environment This door seal helps reduce energy consumption and carbon dioxide emissions, which are particularly high in summer due to heavy use of air conditioning. Easy to install It is convenient to install and dismantle and can be removed when not in use without affecting use again. Universal This product is available in door and window versions to meet all your needs. Suitable for all portable air conditioners and tumble dryers, regardless of manufacturer.