Cozeware FreshFlow mounts in a window and brings filtered outdoor air inside without opening it, cutting stuffiness and CO2 buildup while keeping pollen and dust out.

• No-drill window mount: It fits single-hung or double-hung windows without drilling, and moves to another room later.
• Fresh outdoor air, not recirculated: FreshFlow filters and pulls in outdoor air, instead of only cleaning air already inside, which keeps CO2 lower.
• Filters matched to outdoor air: Three filter types handle pollen, smoke, or bacteria, each lasting up to 2,160 hours, about nine months of typical use.
• App-based control: The AirGuide app shows real-time CO2 and PM2.5 readings and lets you set schedules and airflow modes.
• Room coverage: It moves up to 47.1 CFM across rooms up to 345 square feet, and the Pro model adds an indoor purification mode.

Cozeware FreshFlow gives stuffy rooms a steady supply of clean outdoor air without opening a window or adding ductwork.