- Basic filter unit (B4)
- Passive inlet air filtration
- Aluminum alloy casing and construction
- Varnished surface inside and outside
- Aluminum or stainless steel fasteners
- Health-protecting seals and gaskets
- Mechanical monitoring of air pressure difference in front of and behind the filters
- Security against accidental limitation of drive functionality
- Basic filter unit, enhanced security (B4S)
- Passive inlet air filtration
- Aluminum alloy casing and construction
- Varnished surface inside and out
- Aluminum or stainless steel fasteners
- Health-protecting seals and gaskets
- Mechanical monitoring of air pressure difference in front of and behind the filters
- Security against limitation of drive functionality - public spaces
- Basic filter unit, electronic outlet air pressure control (B4E) *
- Active inlet air filtration
- Flow 250m3 / hour at pressure loss of 250Pa
- Aluminum alloy casing and construction
- Varnished surface inside and out
- Aluminum or stainless steel fasteners
- Health-protecting seals and gaskets
- Electronic monitoring
- air pressure difference in front of and behind the filters
- pressure difference at unit outlet and reference space
- ambient temperatures and filter clogging limit level indication
- Noise muffler
- Safe operating voltage, external power supply
- Security against accidental limitation of drive functionality
- Basic filter unit, electronic outlet air pressure control, increased safety (B4SE) *
< br />- Active inlet air filtration
- Flow 250m3 / hour at th. loss of 250Pa
- Aluminum alloy casing and construction
- Painted surface inside and out
- Aluminum or stainless steel fasteners
- Health-protecting seals and gaskets
- Electronic monitoring
- air pressure difference in front of and behind the filters
- pressure difference at unit outlet and reference space
- ambient temperatures and filter clogging limit level indication
- Noise muffler
- Safe operating voltage, external power supply
- Security against unit function limitations - public spaces
- Basic filter unit, electronic outlet air pressure control, solar power supply (B4ES) **
- Active inlet air filtration
- Max. solar panel power 30Wp / 24V
- Lithium battery 20Ah (30Ah) / 24V
- Aluminum alloy casing and construction
- Painted surface inside and out
- Aluminum or stainless steel fasteners
- Health-protecting seals and gaskets
- Electronic monitoring
- air pressure difference in front of and behind the filters or pressure difference at unit outlet and reference space
- ambient temperatures and filter clogging limit level indication
- solar panel performance
- battery voltage
- Noise muffler
- Safe operating voltage, external power supply
- Security against accidental limitation of drive functionality
* in production preparation phase
** in development phase