The Vents Solar Powered Ductless Fresh Air Wall Vent PSS 102 is an innovative solution designed to provide a continuous supply of fresh air to residential and commercial spaces. It functions by delivering fresh air without the need to open windows, effectively blocking out dust and street noise. The internal fan outputs up to 11 CFM during the day using solar power, and at night, it reverts to passive ventilation. Ideal for homes, tiny homes, cottages, and office buildings, it is typically installed in exterior walls above or near windows, ensuring a steady flow of fresh air while maintaining a quiet indoor environment.