enVerid Sorbent Ventilation TechnologyTM (SVTTM) is the innovative technology at the core of enVerid’s flagship product, the HVAC Load Reduction™ (HLR) module, an air cleaner that improves IAQ while reducing ventilation energy consumption and HVAC system first costs.
enVerid SVT is a non-toxic sorbent-based air cleaning technology designed to capture carbon dioxide, ozone, and over 250 types of volatile organic compounds (VOCs) including formaldehyde. When applied in combination with the ASHRAE 62.1 Indoor Air Quality Procedure (IAQP), SVT not only safely cleans indoor air but also reduces outside air requirements by as much as 80 percent. As a result, annual HVAC energy costs can be reduced by up to 40%, substantially lowering a building’s energy intensity and carbon emissions.
SVT refers not just to enVerid’s sorbent mixture and filters, but encompasses broader innovations, including enVerid’s air mixing, control integration and the unique regeneration process that allows for the ongoing capture of CO2 produced by exhalations.
enVerid’s HVAC Load Reduction modules are among the only air cleaning products to have undergone independent lab testing for cleaning efficiency for all contaminants of concern using ASHRAE Standard 145.2, the Laboratory Test Method for Assessing the Performance of Gas-Phase Air-Cleaning Systems. Independent lab testing has also confirmed that enVerid’s sorbents produce zero byproducts.
The newest generation of enVerid’s sorbent filter lasts two years before replacement is required. Replacement sorbent filters may be purchased through enVerid’s local Manufacturer Representative or factory direct. Replacing sorbent filters is easy: watch this video to learn how.
During scrubbing mode, also called adsorption, the HLR module’s fans direct air through the sorbent filters. As the air passes through the filters, contaminants bind to the sorbent inside, which removes them from the air. Afterward, the air is contaminant-free and ready to breathe.
When CO2 scrubbing is required, sorbent filters require periodic regeneration to stay at maximum efficiency. During the regeneration process, the filters are heated up to 130-150 degrees Fahrenheit. At this temperature, the sorbent releases the contaminants, which are immediately vented outside via the building exhaust. Once the sorbent is clean, it is ready to start removing contaminants from the indoor air again. The cycle of adsorption and regeneration is completely automated based on a pre-defined schedule configured during start-up.
Regeneration is not required in low-density applications where CO2 is not a major factor. The HLR 200M and HLR 15R products are designed for regeneration. The HLR 100M product does not use regeneration.
Sorbents have been safely used for decades to purify air in places like the International Space Station, remove odors in buildings, and protect workers exposed to products that produce unhealthy fumes. In all of these cases, gaseous contaminant molecules attach to the sorbent, making the air healthy again.
enVerid’s sorbents are highly selective in their ability to remove unwanted indoor air contaminants and represent breakthroughs in material science discovered by national laboratories and university research groups and further developed by enVerid scientists and engineers.
enVerid’s Sorbent Ventilation Technology™ (SVT) targets specific indoor air contaminants including:
- Carbon Dioxide: enVerid has reengineered sorbents initially developed to address atmospheric CO2 for indoor use
- Volatile Organic Compounds: our sorbent captures VOCs using novel synthetic carbon technology previously used in military and industrial settings
- Formaldehyde: the sorbent mixture includes high-capacity formaldehyde-selective sorbents developed by enVerid
enVerid’s sorbent blend is unique in two ways: it captures all common contaminants in buildings and it can regenerate at very low temperatures, enabling it to regain its capacity and cleaning efficiency over and over. enVerid’s sorbent is the first of its kind to be able to regenerate at temperatures below 1,000 degrees Fahrenheit, making it the only sorbent safe for regular indoor use.