Fresh air filtration
An important component of biosecurity in pig and poultry production
Helping you maintain healthy stock is important to Big Dutchman. Our experts have therefore developed fresh air filters which reduce the risk that airborne pathogens, such as the PRRS virus, and other airborne aerosols, such as the influenza virus or mycoplasma, can enter the building.
These mechanical filters are either installed in front of individual air inlets (decentralised fresh air distribution) or as a filter bank (central fresh air distribution).
Structure and functional principle
The filter system developed by Big Dutchman consists of a pre-filter and a main filter.
The pre-filter is a “Coarse 80 %” filter, i.e. a coarse dust filter designed to separate large particles (≥ 10 µm) from the air, with an efficiency of at least 80 per cent. Its main task is removing insects and coarse dust particles as well as protecting the downstream, more costly, main filter. The main filter, of the ePM1 85 % filter class, is a fine dust filter. It separates ultrafine particles from the air, with a minimum efficiency of 85 per cent. These particles are between 0.3 µm and 1.0 µm in size and can have viruses and bacteria adhering to them.
To ensure that only filtered air enters the house, a balanced-pressure or negative pressure ventilation system should be used.
Důležité výhody
- the introduction of viruses via the fresh air is reduced very efficiently, improving animal health;
- pig herds that are free from the PRRS virus perform better biologically;
- fewer secondary infections reduce the use of medication;
- different options are available, depending on the type of fresh air distribution (decentralised or central);
- simultaneous cooling of fresh air is possible if required;
- the main filter has energy efficiency class A and maintains it for its entire service life;
- the filter cartridges for pre-filter and main filter are easy to exchange;
- low maintenance requirements.
