ASHRAE Standard 62.1 enables building designers to optimize IAQ with the use of the Indoor Air Quality Procedure. While this has been part of the standard for decades, until recently, its implementation relied on engineers to choose contaminants of concern and their generation rates. The 2019 edition of the Standard provided an approved list of design compounds and their allowable levels. And with 62.1-2022, the guesswork – and risk – are gone. ASHRAE now includes standardized guidance and test requirements for contaminant control, mitigating risk for the engineer tasked with developing proper design.
Dynamic systems enable the effective use of the IAQP to help our customers lower their first costs while meeting their IAQ and energy goals.
"The IAQP may be used to achieve better air quality than the VRP (lower contaminant levels and/or higher perceived acceptability) with or without increasing first cost or maintenance cost." – ASHRAE Standard 62.1 User’s Manual
ASHRAE Standard 62.1 provides procedures and methods for meeting minimum ventilation and IAQ requirements including the Ventilation Rate Procedure (VRP) and the Indoor Air Quality Procedure (IAQP). These are both methods for calculating the ventilation rates in commercial buildings where the VRP is a prescriptive method and the IAQP is a performance-based ventilation method.
The VRP is widely accepted and uses predetermined outdoor air intake rates for different spaces, but there can be an energy penalty for heating and cooling this outdoor air. The performance-based method of IAQP has the ability to use air cleaning and source control with reduced Outside Air (OA) resulting in a more cost-effective and energy efficient design.
In addition to having better air quality, one of the big advantages of reduced outside air is the energy savings with IAQP. By reducing the Outside Air, the volume of air to heat and cool is also reduced. Dynamic AQS has the added advantage of industry low static air cleaning solutions. When compared to passive filtration and pleated sorbents, Dynamic air cleaning solutions save additional fan energy resulting in the most energy efficient IAQP solution.
Dynamic’s approach to IAQP implementation focuses on cleaning 100% of the air in your building. Unlike systems that only treat a portion of the air, our full flow solution ensures comprehensive air cleaning while maximizing energy efficiency.
Annual Energy Usage Assumptions:
- Energy usage based on 20,000 cfm, 1 year of 24/7 operation, and assumes 65 % fan and 80% motor efficiencies
- Mid-life static for all
- everything is in the air handler (Filter B position)
- Heating and cooling- uses Washington DC as location (uses pricing tool info and calcs)
- Compares V8 to MERV 8 prefilter+ MERV 13 filter
| 62.1 Versions Before 2022 | 62.1-2022 |
|---|---|
| Engineer of record specifies contaminants and limits | ASHRAE defines design compounds (contaminants) and PM2.5, and their design limits |
| Only subjective evaluation survey required | ASHRAE subjective and defined objective air measurement evaluations |
| No defined efficiency testing for contaminant removal | Required efficiency testing per ASHRAE Standard 52.2, ASHRAE Standard 145.2, etc. and testing methodology for non-covered technologies (per Addendum n) |
With the introduction of 62.1-2022 for the first time, ASHRAE provides a standard list of contaminants of concern and their maximum allowable concentrations, as well as an IAQ calculator that predicts contaminant levels based on system design and the effective use of air cleaning (tested as per ASHRAE Standards 52.2 for particles and 145.2 for gases). These provisions mitigate the risk to design engineers of making these determinations on-site, and allow them to focus on engineering instead of industrial hygiene.
Dynamic IAQP solutions go beyond meeting the minimum requirements and maximize the IAQ resulting in lower contaminant levels when compared to VRP and alternative solutions.
From large custom air handlers to distributed water source heat pumps, Dynamic has flexible IAQP compliant solutions to seamlessly integrate into your design. Further, our low pressure drop enables full-flow systems that clean 100% of the air in the building utilizing existing fans. This is typically both the most effective, cost-effective, and easiest way to apply air cleaning as part of your IAP design. Fan-powered units are also available.
In a 2024 renovation and decarbonization project at a Washington, D.C. school, the use of Dynamic Air Cleaners (V8 and EDGE in water source heat pumps) with the USGBC pilot credit (EQpc165) and the 2022 IAQP resulted in:
- A 43% reduction in the size of the required DOAS unit
- Net Zero Emissions – without using geothermal heat pumps
- A net savings of over $1,800,000 on initial equipment costs
- An EUI (Energy Usage Intensity) of 21.6 (less than half that of a typical school)
- A LEED Platinum building
- Ongoing savings in energy and maintenance costs
- Hospital-grade filtration levels compliant with ASHRAE 241
Dynamic AQS custom engineers solutions to achieve the best air quality possible with the most efficient use of equipment. Our full-flow IAQP solutions clean 100% of the air while maximizing the benefits of the 2022 IAQP.
The Dynamic V8® Air Cleaning System couples MERV 13-15 effectiveness with proven and unparalleled energy and operational savings.
The V8’s low pressure drop and incredible loading capacity combine an industry-leading 5 year life in typical applications.
The V8 also features an enhanced ability to remove ultrafine particles from combustion sources such as vehicles and wildfires.
Dynamic EDGE® Gas Phase Removal features a patented design that allows for even, predictable flow through fully accessible media. Benefits of this design include exceptional removal efficiencies and a long service life – at a fraction of the pressure drop and energy usage of competitive gas phase removal systems.
EDGE is third-party ASHRAE Standard 145.2 tested for 62.1-2022 design compounds.
Water Source Heat Pumps (WSHP), Variable Air Volume Systems (VAV), Variable Refrigerant Flow Systems (VRF)
Air Handling Unit (AHU), Rooftop Unit (RTU)
