What Is a Spark Free Fridge and Why Is It Important?

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When in the market for a laboratory refrigerator, you’ll likely come across both a standard refrigerator and a ‘spark free’ refrigerator? What exactly does spark free mean and do you require a spark free fridge? Let’s explore this topic in more detail so you’re able to make a more informed decision.

What does it mean to be spark free?

Spark free (also known as static or spark safe) simply refers to the interior of the refrigerator has no chance of igniting flammable liquids. To achieve this, manufacturers will remove internal items that could ignite such as fans, lights, and electric thermostats. Note that only the interior of spark free refrigerator will be spark free.

Do I need a spark free refrigerator?

The two main refrigerators that you’ll come across will be fan-forced and spark free. There are pros and cons for both options and the most suitable refrigerator will depend on the application.

Spark free fridges are important if you’re storing reagents and/or solvents that could potentially ignite. Spark free fridges can maintain a more constant temperature as they have a built-in defrost cycle.

Fan-forced fridges are not recommended for solvents due to the explosion risk. They are also not recommended where temperatures are critical as temperatures can fluctuate between the temperature range of the fridge, especially during defrost cycles.

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