SWERV window ERV installed in a window next to founder Austin Riesenberger holding a SWERV unit

SWERV Air Opens Pre-Orders for New Window ERV to Bring Fresh-Air Ventilation to Every Bedroom

First large-scale production run of SWERV's window energy recovery ventilator (ERV) delivers continuous fresh outdoor air without losing heat during cold winter months.

BOSTON, MA, October 22, 2026: SWERV Air, the window ERV that brings fresh, filtered air into your room without opening a window, today announced pre-orders for its next-generation SWERV V3. The milestone follows the sell-out of the company's second beta batch and marks SWERV Air's first large-scale manufactured production run.

Modern, energy-efficient building standards create tightly sealed homes that keep conditioned air in but also keep fresh air out. Rooms get stuffy and smelly, and carbon dioxide (CO2) builds up overnight, which is linked to morning brain fog, poorer sleep quality, and excess condensation on windows.

"SWERV Air was designed for anyone who wants to wake up breathing clean, fresh air," said Austin Riesenberger, founder and CEO of SWERV Air. "Our new model delivers true fresh-air ventilation in a simple, quiet window unit that installs in minutes. It tackles overnight CO2 spikes and morning brain fog without sacrificing your heat or comfort."

Installable in double-hung, single-hung, and horizontal sliding windows in under 15 minutes with no ductwork, holes, or contractor required, SWERV's new model is an alternative to complex, whole-home ducted HVAC systems and to portable air purifiers that only recirculate stale air. An energy recovery ventilator continuously exhausts stale indoor air while drawing in fresh, filtered outdoor air. SWERV does this while recovering approximately 85% of the heat and moisture from the outgoing air.

SWERV Air's window-mounted ERV delivers health, comfort, and efficiency advantages for residential living, including:

  • Sleep and cognitive wellness: Brings in fresh air that lowers CO2 and filters airborne impurities to support restorative sleep and fewer groggy mornings.
  • Thermal comfort and efficiency: Recovers heat and humidity to keep rooms warm and draft-free on freezing winter nights while keeping utility bills in check.
  • Whole-home air quality: Helps balance indoor relative humidity to reduce window condensation and dilute indoor pollutants, lingering odors, and radon.

Every SWERV V3 is backed by a 5-Year Limited Warranty and a 30-day return guarantee.

To learn more about window-based energy recovery ventilation or to reserve a unit, visit swervair.com.

About SWERV Air

SWERV Air is a consumer-first ventilation company that brings fresh, filtered outdoor air into homes without losing comfort or wasting energy. Founded by Austin Riesenberger and based at Greentown Labs in Somerville, MA, SWERV offers a streamlined indoor air quality solution through its renter-friendly, window-mounted energy recovery ventilator. SWERV units lower CO2 and dilute indoor pollutants like VOCs and radon through continuous ventilation, with MERV-13 and activated carbon filtration, all in a quiet device that installs in 15 minutes or less. Learn more at swervair.com.

Press Inquiries

Kathy Berardi
kathy@berardipr.com
678-644-4122

Back to blog