Extraction units

Local exhaust ventilation is used when the places of harmful emissions in the room are localized and it is possible to prevent their spread throughout the room. Local exhaust ventilation in industrial premises ensures the capture and removal of harmful emissions: gases, smoke, dust and heat partially released from the equipment. To remove hazards, local suctions are used (shelters in the form of cabinets, umbrellas, side suctions, curtains, shelters in the form of casings near machine tools, etc.). The main requirements that they must satisfy:

  • The place of formation of harmful emissions should, if possible, be completely covered.
  • The design of the local suction must be such that the suction does not interfere with normal operation and did not reduce labor productivity.
  • Harmful emissions must be removed from the place of their formation in the direction of their natural movement (hot gases and vapors must be removed upwards, cold heavy gases and dust - downwards).
  • The designs of local exhausts are conditionally divided into three groups.
  • Semi-open exhausts (hoods, umbrellas). Air volumes are determined by calculation.
  • Open type (onboard suction). Removal of harmful emissions is achieved only with large volumes of sucked air.

Exhaust ventilation device

When installing local exhaust ventilation to capture dust emissions, the air removed from the workshop, before being released into the atmosphere, must be preliminarily cleaned of dust.
The most complex exhaust systems are those that provide for a very high degree of air purification from dust with the installation of two or even three dust collectors (filters) in series.
Local exhaust systems, as a rule, they are very effective, as they allow the removal of harmful substances directly from the place of their formation or release, preventing them from spreading indoors. Due to the significant concentration of harmful substances (vapours, gases, dust), it is usually possible to achieve a good sanitary and hygienic effect with a small amount of air removed.
However, local systems cannot solve all the problems facing ventilation. Not all harmful secretions can be localized by these systems. For example, when harmful emissions are dispersed over a large area or volume; air supply to individual areas of the room cannot provide the necessary conditions for the air environment, the same is true if the work is done on the entire area of the room or its nature is associated with movement, etc.

casa blues
Very high ability to remove cooking odors. 77%, 30 l/s, 108 m3/h10 hours summer coolingCapacitive touchscreen Available Safera Sto..
0.00 Br
CASA Dance
Stylish design with a smooth underside that is easy to clean.Installed under the R2 air handling unit.Energy-saving LED lighting w..
0.00 Br
Casa Folk
0.00 Br
casa funk
0.00 Br
casa jazz
Excellent cooking odor removal capacity: 77%, 30 l/s / 108 m3/h10 hours of summer coolingCapacitive touch screen< li>Safera Stove ..
0.00 Br
0.00 Br
casa rock
Designer hood with a very high ability to capture cooking odors. 75%, 46 l/s, 165 m³/h.Can be installed on the wall or above the k..
0.00 Br
casa salsa
Very high ability to remove cooking odors. 76%, 40 l/s, 144 m3/h10 hours summer coolingCapacitive touchscreenTechnical maintenance..
0.00 Br
casa samba
Good odor trapping during cooking thanks to low exhaust hood10 hours of summer coolingCapacitive touch panelMaintenance-free LED l..
0.00 Br
casa swing
An elegant hood with a very high ability to remove cooking odors. 75%, 46 l/s, 165 m³/h.Can be installed on the wall or above the ..
0.00 Br
casa tango
Very high odor removal efficiency for cooking with low air consumption. 80%, 20 l/s, 72 m3/h10 hours of summer coolingMaintenance-..
0.00 Br
CASA Twist
With Twist you can turn your smart hood into a modern and functional range hood and/or extractor fan. This is a great solution for..
0.00 Br
Showing 1 to 12 of 13 (2 Pages)