SWERV Press Kit and Fact Sheet
SWERV makes the SWERV V3, a window-mounted energy recovery ventilator (window ERV) that brings fresh, filtered outdoor air into one room while recovering about 85% of the heating and cooling energy. It installs in a sliding or double-hung window in 10 to 15 minutes with no ductwork, holes or contractor. For press inquiries, email austin@swervair.com.
Company facts
- Company: SWERV Inc, doing business as SWERV Air
- Founded: 2025
- Founder and CEO: Austin Riesenberger
- Headquarters: Greentown Labs, 444 Somerville Avenue, Somerville, MA 02143
- Origin: started as a senior design project at Columbia University
- Sold at: swervair.com, United States only
Product facts: SWERV V3
| What it is | Ductless window-mounted ERV (energy recovery ventilator) |
| Price | $799, or $898 with optional CO2, temperature and humidity sensors |
| Coverage | Single room up to 1,000 sq ft; multiple units pair for larger spaces |
| Airflow | Up to 110 CFM; about 50 CFM at 50% speed |
| Noise at 1 m | About 35 dBA at 10% speed, 50 dBA at 50%, 59 dBA at 100% |
| Energy recovery | About 85% of heat and moisture, regenerative ceramic core |
| Filtration | 2-in-1 MERV 13 + activated carbon |
| Power | About 10 W typical, 42 W max |
| Operating range | -22°F to 150°F outdoor |
| Window fit | Double-hung, single-hung and horizontal sliders at least 23 in wide |
| Install | 10 to 15 minutes, one person, no tools beyond a knife and ruler |
| Warranty | 5-year limited warranty, free 30-day returns |
The problem SWERV solves
Closed bedrooms commonly climb past 1,000 to 2,000 ppm CO2 overnight. Air purifiers cannot fix that because they only recirculate indoor air, and opening a window wastes heating and cooling and lets in noise, smoke and pollen. Whole-house ERVs fix it but typically cost $8,000 to $40,000 and need ductwork, which renters cannot install. SWERV brings the same technology to one room for $799. Customers typically see 40 to 70% lower CO2 in the room it serves. See real CO2 data from customer bedrooms.
In the press
- Green Building Advisor: Introducing the SwervAir Energy Recovery Ventilator
- Fine Homebuilding: Simple Ventilation for Small Spaces
- GreenHome Institute: Ventilation without renovation - Window ERVs
Story angles
- Why your bedroom CO2 doubles overnight, with real measurements from customer homes
- The renter ventilation gap: fresh air without drilling, ductwork or a landlord's permission
- Why air purifiers cannot lower CO2, radon or VOCs
- A hardware startup building and testing by hand at Greentown Labs
Product photos and interviews available on request: austin@swervair.com.