SOMERVILLE, MA - August 14, 2026

SWERV, a hardware startup based out of Greentown Labs, has introduced a new approach to the traditional residential ERV system. Designed to eliminate the high ERV installation cost typically associated with whole-home ventilation, the company is shipping a compact Window Energy Recovery Ventilator that installs in minutes. This renter-friendly solution delivers fresh, filtered air while continuously exhausting stale indoor air, helping occupants lower carbon dioxide levels and improve sleep quality without hiring contractors or modifying existing ductwork.

Standard ventilation solutions often require heavy renovations. SWERV addresses this barrier by functioning as a smart window air exchanger. The unit reverses its airflow every 45 seconds, pushing indoor air out through a ceramic core that stores the room's temperature. As the fans reverse to bring fresh outdoor air inside, the incoming air passes through the same core, recovering about 85 percent of the heating or cooling energy. This process keeps rooms comfortable year-round while actively blocking outside noise and extreme temperatures.

The window mounted ERV provides an effective alternative to simply opening a window, which often invites pollen, pollution, and humidity indoors. When homeowners rely on traditional air purifiers, they only recirculate the same stale air already trapped inside the room. By continuously supplying filtered oxygen and diluting indoor pollutants like volatile organic compounds, mold, and radon, SWERV ensures a healthier indoor environment. The system helps users wake up refreshed, without the grogginess caused by carbon dioxide buildup that commonly occurs overnight in closed bedrooms.

Key Features of the SWERV V2 Window Unit

The SWERV V2 is engineered and assembled in the United States and offers the following functionalities for modern homes:
Fast Installation: Fits securely into horizontal or vertical sliding windows that are 23 inches or wider in about 10 minutes without permanent modifications.

Energy Conservation: Recovers roughly 85 percent of heating and cooling energy via a thermal ceramic core, potentially paying for itself over time.

Multi-Stage Filtration: Blocks pollen, wildfire smoke, and urban pollution before it enters the living space using a combined filter system.

Quiet Operation: Engineered to operate at low noise levels to ensure an uninterrupted sleep environment for bedrooms.

Year-Round Climate Range: Operates reliably in extreme outdoor temperatures while maintaining comfortable indoor conditions.
"We built this system because achieving healthy indoor air should not require thousands of dollars in construction fees," a SWERV spokesperson said. "Our goal is to help people breathe better and sleep soundly through accessible, high-quality engineering."

Every modern home requires effective ventilation to maintain occupant health, and choosing a portable residential ERV system is a practical way to manage indoor pollutants without permanent construction. SWERV provides a direct path to cleaner air for both homeowners and apartment renters who previously lacked viable ventilation options. Preorders for the SWERV V2 are currently open on the official website, with orders shipping sequentially as they are completed.

About SWERV

SWERV is a ventilation hardware company operating out of Greentown Labs near Boston, Massachusetts. Founded to solve the problem of poor indoor air quality, the company designs and builds renter-friendly ventilation systems. SWERV products provide continuous fresh air and energy recovery without requiring permanent home modifications, helping customers optimize their sleep and long-term health.
Email: [email protected]
Phone: +1 (585) 645-3768