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Protect your personnel and plant from contamination with Mist Showers

Modular in design, these systems can be integrated with exit airlock systems or emergency exit in a processing facility where highly potent molecules are manufactured/used as raw materials. When the operator removes their protective clothing (PPE) they also take off the primary personal protection (respirator) at the same time.

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Mist showers reduce possible re-suspension of hazardous particulates in the operator’s breathing zone and contamination into the de-gowning area. It works by gently wetting the surface of the operator’s protective gown with a fine water mist, causing the powder to stick to the surface instead of becoming airborne.

It is generally of double walled construction with internal coved work chamber and material of construction is either SS 304 or SS 316 L. It can have airtight single or multi doors exits, with doors are available in SS double wall or tempered glass.

This is a customised solution and dimensions are detailed to accommodate plant layouts. The location of misting nozzles, type and cycle time are all carefully optimized to ensure uniform mist coverage and that no region is under or over-saturated with water. The washed water however minute in quantity is disposed of per prefixed SOP to the effluent treatment plant or post-neutralisation in case of potent materials. Internal classification within the system is finalised during the design stage and an appropriate filtration system is provided with safe change filters if required.

Additional features which can be part of execution include

  1. appropriate light with target lux level
  2. breathing mask to be used during misting operation
  3. add on compartment to discard protective clothing and safe disposal
  4. manual spray gun for interior cleaning
  5. dedicated water tank with heater arrangement with pump

The entire operation is fully automated and sequentially controlled through a PLC with CFR compliance as required. It is available in FLP and NFLP execution.

The effectiveness of the system is also dependent on mist cycle duration, operator technique during mist cycle, material and design of protective clothing as well as the physical and chemical properties of particulate and all these should be taken into consideration when evaluating effectiveness if the system. For the equipment to be effective the operator must follow correct misting procedures and the facility’s de-gowning procedure.

We, at Fabtech, have designed, built and validated mist showers for Sun Pharma, Biocon, Lupin, Torrent, Emcure and various international clientele.

All mist showers manufactured by us are subjected to

  1. Dye tests, during FAT using a dedicated system to ensure uniform misting of person, protective equipment and absence of dead zone demonstrating the effectiveness of the system
  2. Surrogate material studies, during SAT protocol execution. The use of mist showers reduces airborne concentration in the range of 140 to 170 times comparatively.

If you would like to know more about our Mist Showers, please get in touch using the form below.

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Tell us what you are building and where. An engineer will read your message and answer it. We reply within 24 hours.

What helps us reply faster
  • The process. What you will make, in what dosage form, and at about what scale. For example: tablets, capsules, liquids, sterile injectables, API or biologics. Your answer changes almost every later step of the project.
  • The containment requirement. If the material is potent, tell us its OEB band. OEB (occupational exposure band) is a grade that shows how little of a material a worker can safely be exposed to. This one figure decides if you need a booth, an isolator or a contained suite. Their costs differ by an order of magnitude, which means about ten times.
  • The market. Tell us which regulator will inspect the facility. Also tell us the electrical supply at the site: 50 Hz or 60 Hz. The format of the documents and the specification of the equipment both depend on this.
  • The state of the site. Greenfield (an empty plot), brownfield (a site used before), an extension, or a retrofit into a running plant. A retrofit means new work inside a plant that is still in production. It is a different engineering problem from an empty plot, and usually a harder one.
  • Your timeline. Include any regulatory or commercial date the project has to meet.

For a single piece of equipment rather than a facility, tell us four things: the machine, the material, the throughput and the destination market. Throughput is how much material the machine must process in a set time.

Telephone: +91 22 6554 0300