Anti-smog electrostatic precipitator
FESP
The FESP electrostatic filter provides exceptionally effective air purification thanks to its two-stage filtration technology.
In the first stage, a steel pre-filter traps larger contaminants, protecting the system and minimising the need for servicing.
In the second stage, a high-efficiency electrostatic filter uses ionisation (8 kV) and an electrostatic field (4 kV) to
capture the finest dust particles, such as ePM1, ePM2.5 and ePM10. Maximum filtration efficiency reaches up to 95%,
making it an excellent solution for protection against smog.
The device is designed for home heat recovery systems — it has a compact design, very low flow resistance and minimal energy
consumption. Four housing sizes are available to fit most air handling units, depending on their capacity and duct connection
diameter. It is virtually maintenance-free: no cartridge replacement is required, and only water is needed for cleaning.
The housing is thermally insulated, allowing the filter to be used on the intake duct. It is equipped with a removable
cover and a limit switch that cuts off the power supply when opened. This ensures complete safety of use and
a long service life for the entire ventilation system.
Performance 120-1000 m3/h
Corresponding speeds 0,5-4,2 m/s
Diameter of the connection 200mm
Housing Insulated External dimensions AxBxC [mm] 365x400x285
Supply voltage 230V AC, 50Hz
Energy consumption 7W
Installation location On the air intake duct
Maximum filtration efficiency according to EN ISO 16890
ePM1≥95%
ePM2,5≥95%
ePM10≥95%
Two-stage filtration system
The first stage is a steel mesh filter with negligible flow resistance, designed to trap larger contaminants such as leaves, insects and dust. The filter's task is to protect further elements of the system, in particular the electrostatic section, against solid contaminants that could cause damage (e.g. breaking of ionising wires). The use of a mechanical filter extends the service life of the entire system and reduces the need for maintenance.
The second stage is an electrostatic filter, in which the air purification process takes place in two stages: Ionisation section – equipped with ionising wires powered by a constant voltage of 8 kV, causing the ionisation of small particles of pollutants suspended in the air (including ePM10, ePM2.5 and ePM1 dust).
Deposition section – deposition electrodes powered by 4 kV attract ionised particles, effectively removing them from the air flow.
