Lighting is an often overlooked but critical part of the cleanroom design process. A poorly lit cleanroom makes work difficult, and a cleanroom with energy inefficient lighting is not sustainably designed and increases energy costs. When designing a cleanroom, choosing lighting options that work for your application can also help control contamination and promote temperature control. Here are the cleanroom lighting options explained to help you in your cleanroom design project.
Lighting types
The first lighting option to consider is the type of lighting to use: incandescent, fluorescent, or LED. The chart below briefly explains how each of these types of lighting work, as well as their costs and benefits.
| Incandescent | Fluorescent | LED |
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Incandescent lightbulbs are the traditional lightbulbs. They contain a capsule inside that holds gas around a wire filament, which went electricity is applied, gives off light. They give off heat as well as light, which makes them an inefficient light source and an energy waster. In fact, incandescent bulbs are banned in several countries. In addition to their inefficiency, the light they give off is often not bright or consistent enough for cleanroom applications. |
Fluorescent lights work by ionizing mercury vapor inside a glass tube, which causes the gas’s electrons to emit UV light, which is converted to visible light by the coating of the glass tube. They’re available in the traditional long tubes as well as compact fluorescent lamps (CFLs), which are shaped like incandescent lightbulbs. They are more efficient than incandescent bulbs without being much more expensive and are appropriate for many cleanroom applications. |
LED lights, which stands for Light Emitting Diodes, are the most energy-efficient lighting option. They create solid-state lighting by converting electricity directly into light, unlike incandescents and fluorescents. They tend to have a higher initial cost, but their efficiency offsets that cost. LED lighting is often ideal for cleanroom applications, as they do not produce any heat. |
Also worth considering is natural lighting—you may want to evaluate whether is it possible and practical to incorporate windows into your cleanroom design. Natural light is free, but windows may come with some inefficiencies in terms of temperature control.
Lighting fixture options
There are a variety of fixture options for cleanroom lighting, including
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Lighting is an important consideration at the design phase of a cleanroom and the choices you make should compliment your overall envelope solution. Here we will talk you through some of the options available.
Everyone knows what watts are, but there are other measurements for lighting, including how much light you need, how intense it should be, and how far you need it to go. These measurements are:
Cleanroom or clean room environments are extremely specialized with requirements for each technology brought into the space. Cleanroom lighting is no exception. But what is a cleanroom?
Cleanroom lighting is often an afterthought in cleanroom design, as the primary function of a cleanroom is to reduce contamination. So when identifying the type of light fitting to use, consideration needs to be given not just to the lux levels required for the process, but to how this choice of lighting may affect airflow and filtration.
It's no mystery that cleanrooms present numerous challenges to designers who specify lighting systems. Cleanroom lighting will vary depending on the room's use, its classification and ceiling air supply configuration. In an ideal situation, lighting systems should provide good visibility and be designed with contamination control issues—electromagnetic field generation and cleanability—in mind. But before that can be achieved, a thorough examination of the basic fundamentals, illumination requirements, available styles and fixture construction must be undertaken.
As with every aspect of a cleanroom, the lighting is extremely important and requires proper cleanability. In order to prevent any type of contamination, the lighting must be bacteria-free.
When you have a cleanroom, you need to keep it well lit and free of contamination. That's where cleanroom lights come in, since they produce the fewest possible contaminants when it comes to lighting. But some cleanroom classifications require so many air system filter panels that there is little room left for lights. If you're not sure which light fixture would even fit in your cleanroom, take a look at your options.
Lighting is mostly an afterthought in Cleanroom design, as the overall aim is to reduce contamination. Precision is paramount in cleanrooms. Therefore, to prevent contamination, Cleanroom equipment (including lighting) must be installed by Cleanroom professionals, all the while remaining germ-free.
The highly detailed work conducted in cleanrooms requires different requirements for lighting. Cleanroom lighting depends on its classification, as well as the purpose of the Cleanroom and ceiling air supply configuration. Subsequently, lighting should be designed with cleanability, electromagnetic field generation and contamination control issues in mind.
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