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1. All reported specification values are nominal. 2. The sensible effectiveness is at a maximum flow rate of 25 CFM when the product is used in conjunction with an Inline Filter Box that is installed indoors. 3. The sound and power measurements represent the minimum controllable level of an operating unit and exclude legacy variants that do not have dedicated fan controllers. The nominal power that is consumed by a unit can reach or exceed 5 W depending on the specific combination of supply and exhaust fans. The sound measurements were taken at ~3 m from the units. 4. The recommended indoor conditions for the operation of the units are as per the winter and summer comfort zones that are prescribed in ANSI/ASHRAE Standard 55 – 2010.
The recommended floor area is based on the 2021 International Residential Code and ASHRAE Standard 62.2 – 2010 at the rated capacity of the product and an assumed ceiling height of 8 ft.
In terms of ASHRAE Standard 52.2, G2 is approximately rated to MERV4 whereas G4 corresponds to the MERV7 filtration level. In accordance with EN 779 and ISO 16890, G4 filters can capture 60%-85% of particles that are within 0.3 to 10 microns whereas G2 filters can trap the same size of particles at an efficiency of 30%-50%. On the other hand, our HEPA filters, which are based on EN 1822, can trap at least 99.5% of most penetrating particle sizes that are below 2.5 microns. * *