About enVerid Systems
enVerid Systems’ award-winning Sorbent Ventilation Technology® (SVT®) reduces the cost and carbon emissions of heating, ventilating, and air conditioning commercial buildings and increases their resiliency to polluted outside air. SVT delivers these benefits by filtering harmful contaminants from indoor air so that indoor air quality can be maintained with less outside air ventilation, which is energy intensive and expensive to condition and may be polluted. Reducing outside air requirements enables building owners to install smaller, less expensive HVAC systems that use less energy and to operate existing HVAC systems more energy efficiently.
SVT is available in systems sold by leading HVAC manufacturers and in enVerid’s HVAC Load Reduction® (HLR®) modules, which can be easily integrated with HVAC systems from any manufacturer. Over 1,000 HVAC systems with SVT have been installed in commercial, academic, and government buildings globally over the past ten years in full compliance with ASHRAE Standard 62.1 and the International Mechanical Code. SVT can also be used to earn LEED and WELL points.
Save Money & Improve Efficiency by Replacing Energy Recovery with Gas-Phase Air Cleaning
In our September 2024 blog post, I summarized Addendum n to ASHRAE Standard 90.1-2022, the Energy Standard for Sites …
Formaldehyde in Focus: How New EPA Findings & ASHRAE’s Position Document on Indoor CO2 Reshape IAQ Priorities
Discussions about indoor air quality (IAQ) usually focus on particulate matter and carbon dioxide (CO2) with gases like …
Latest Update to ASHRAE 62.1 Simplifies Process to Qualify Gas-Phase Air Cleaning Technologies
In October 2024, ASHRAE published another addendum to Standard 62.1-2022, Ventilation and Acceptable Indoor Air Quality, to simplify the process 
Updates to ASHRAE Standard 90.1 Make Unlocking Energy Savings using the IAQP Even Easier
Our last blog post summarized recent updates to ASHRAE Standard 62.1 that make it easier to design HVAC systems with …
Major Updates by ASHRAE Make the IAQP Simple to Use
There are many benefits to achieving indoor air quality (IAQ) goals with less outside air ventilation. They include improved IAQ …
How to Optimize DOAS/VRF Designs with Sorbent Ventilation Technology
The use of Dedicated Outside Air Systems (DOAS) is growing quickly, driven by the adoption of Variable Refrigerant Flow (VRF) …
Cost Implications of Different Ventilation Strategies to Simultaneously Achieve Energy, IAQ, and Resiliency Goals
For my last Ask the Experts blog post, I caught up with Dr. Bill Bahnfleth to discuss COVID, climate …
Ask the Experts: Dr. Bill Bahnfleth, PSU Professor and ASHRAE Fellow
In this installment of enVerid’s Ask the Experts blog series, I catch up with Dr. Bill Bahnfleth, professor in the …
In the face of rising cooling costs, ASHRAE’s IAQ Procedure and sorbent air cleaning offer relief
The summer of 2023 turned out to be one of the hottest on record for North America. The European Union …
Energy Smart Compliance with ASHRAE Standard 241 for Control of Infectious Aerosol
In May of this year the Centers for Disease Control and Prevention (CDC) updated their ventilation guidance for pandemics. Then, …