Yuzzy Shed Windows 2 Pack Sliding Windows Transom Window with 10″x23″ White
Adjustable Shed Window: Crescent Lock Design slides and adjusts left and right, allowing for effective ventilation while admitting ample sunlight into the shed. Effective Ventilation: It provides both effective ventilation and full sunlight to the interior of your shed.
2 Pack 6675 20X25X5 MERV 16 Air Filter Compatible with 20X25X5 Healthy Climate C
It will last to 1 year.