Open Window

The Fresh Air Solution

Leave Windows Open All Day

Open Window is the green-friendly solution helping you breathe fresh air all day long, even when it’s raining outside Keeping you cool & dry!

Compatible with single-hung or double-hung windows, Open Window pays for itself with all you save on electricity billsas well a drywall repairs!

Easy to install, easy to remove, and for every unit purchased, and we plant a tree, ensuring we all have fresh air to breathe in the future.


check mark   No Tools Needed to Install

check mark  Allows Fresh Air In—Rain or Shine!

check mark   Smart Louvered Design Keeps the Rain Out

check mark   Increases Privacy So No One Can Look Inside

check mark   Lowers Electricity Bills So It Pays for Itself

How does Open Window work?

 The lateral louvers of Open Window are V-shaped, allowing for fresh air ventilation to flow through, but not any inclement weather. The louvers slide and retract to fit various sized windows, and the unit includes a locking mechanism to secure the product in place.

Visit our Frequently Asked Questions page for more information on installation and use. 

I live in a garden apartment in DC, where my bathroom window opens out to the street level.  The Open Window allows me to keep the bathroom window open but maintains my privacy. The fresh air keeps the bathroom fresh, dry, and cool rain or shine.  I love it!

Josh T. - Washington, DC

I wanted to let you know how much I have enjoyed The Open Window. It has been great to be able leave the window open in rainy weather while still maintaining privacy and security. Rain stays out while still allowing fresh air in and you feel secure in knowing that the window opening is protected.  Thanks for such a great product.

Mike S. - Ann Arbor, MI

We love the open window.  Its functionality allows us to have the window open with fresh air flowing thru the house during those spring rains.  It’s a carpet saver!

Mike D. - Westerville, OH

Planting Trees for the Future

Through a partnership with the Arbor Day Foundation, we will plant a tree for every unit sold. Our goal is to sell one million Open Windows and plant one million trees. Your purchase today will help make this goal a reality.