Eurovent Energy Classification RS4/C/001-2019

Thanks to this Eurovent standard, it is possible to compare air filters in terms of energy consumption, based on ISO 16890. The energy consumption per year is calculated using the following formula:

 

 

 

 

 

 

 

W = annual energy consumption (kWh) Q_v = airflow (m³/s) Δp = average pressure drop (Pa)
T = operating time per year (hours) η = fan efficiency (%)

Within this formula, Eurovent uses several constants:

The airflow is standard 3400 m3/h, the number of operating hours is standard 6000 hours, and the fan efficiency is set to 50%. The only variable is the average pressure drop. The average pressure drop is the average of the initial pressure and the pressure drop of a filter with a specified dust loading using ISO test dust. The dust loading required depends on the filter group the filter is assigned to;

Filter Group	Dust Loading
ePM-10 -xx%	400g
ePM-2.5 -xx%	250g
ePM-1 -xx%	200g

Energy-Efficient Air Filter

The result of the formula determines how energy-efficient a filter is. The lower the number of kWh, the lower the energy consumption, and thus the lower the energy costs and CO2 emissions associated with generating the required energy. Depending on the calculated annual energy consumption, Eurovent assigns energy labels to Eurovent-certified filters that have been tested with an airflow of 3400 m3/h in accordance with the requirements of RS4/C/001-2019.

ISP ePM1 group	Energy Class A+ [kWh]	Energy Class A [kWh]	Energy Class B [kWh]	Energy Class C [kWh]	Energy Class D [kWh]	Energy Class E [kWh]
50% - 55%	≤ 800	900	1050	1400	2000	> 2000
60% - 65%	≤ 850	950	1100	1450	2050	> 2050
70% - 75%	≤ 950	1100	1250	1550	2150	> 2150
80% - 85%	≤ 1050	1250	1450	1800	2400	> 2400
≥ 90%	≤ 1200	1400	1550	1900	2500	> 2500

ISP ePM2.5 group	A+	A	B	C	D	E
50% - 55%	≤ 700	800	950	1200	1700	> 1700