Why Choose a Downflow Booth
Dust is more than a side effect of a process that you should just accept as an inconvenience. The potential for serious harm to workers who have been subjected to an occupational dusty environment is real; from an annoying cough through to a life debilitating condition such as Chronic Obstructive Pulmonary Disease (COPD), or even Lung Cancer. Even more extreme is the potential for an explosion that could have devastating consequences.
Within the food industry the products made are innocuous, however, dust created in their production can be explosive and given the right circumstances can result in an explosion or fireball. All that is required is that a combustible substance is mixed or suspended in the air at a sufficient concentration and that it is contained in a vessel or building when ignition occurs.
Downflow Booths have been designed to offer control of dust over large areas of emission where conventional hoods etc. are not adequate or effective. For example, during scooping from tubs or bags into a weigh point, or where the area of dust emission is very large. The Downflow Booth offers suppression and extraction of dust over the whole area.
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How Downflow Booths Work
A modular designed booth, from 2 & 3 metres up to 8 metres in width as standard, offering a constant downward supply of clean air, preventing dust and particulates from entering the operator’s breathing zone, extracting through grilled filter panels.
When scooping from tubs or bags into a weigh point, the area of dust emission can be substantial. The downflow booth operates on a re-circulatory airflow principle. A clean downflow of air is supplied from the ceiling via HEPA (High Efficiency Particle Arrestor) filters, suppressing dust away from the operator’s breathing zone.
Grilles in the lower rear wall capture airborne contaminants and filter the air via three stage filtration. This filtration process comprises of primary roughing filters, secondary bag filters and finally HEPA filters discharging clean air over the operator’s head, providing a nominal evenly distributed downflow of 0.5m/sec.
Included within the booth are pressure indicating devices to monitor the performance of the extraction together with automatic control of the variable speed fans to maintain optimum operating conditions.
The day to day use of the booth is simple, demanding no technical knowledge for its use. The control panel is designed with integral pressure indicating devices to monitor the performance of the
extraction, together with automatic control of the variable speed fans to maintain optimum operating conditions.
The start/stop buttons are supported with indicator lights that show that the booth is running correctly. As standard the booth comes with one twin IP66 socket.
The primary and secondary filters are located within their filter housing and they are located behind the grille at the back of the booth. Routine housekeeping will maintain the life of the filters and ensure the booth is working with maximum efficiency.
Standard Booth Sizes
The booths have been designed and engineered to be of modular construction and they are manufactured in Stainless Steel.
As standard, the booths are available in 2m and 3m widths up to 8m. Customised widths can be manufactured to meet your specific requirements, however, this would have an effect on the lead time from point of ordering through to delivery on site.