# Low frequency use of laser tubes in cold areas

**URL:** <https://forum.cloudray.com/t/low-frequency-use-of-laser-tubes-in-cold-areas/267>\
**Category:** FAQ\
**Created:** [April 16, 2021, 5:16am UTC](https://forum.cloudray.com/t/low-frequency-use-of-laser-tubes-in-cold-areas/267 "2021-04-16T05:16:43Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Technician](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.cloudray.com/technician/32/15_2.png) [@Technician](https://forum.cloudray.com/u/Technician)\
**Post date:** [April 16, 2021, 5:16am UTC](https://forum.cloudray.com/t/low-frequency-use-of-laser-tubes-in-cold-areas/267/1 "2021-04-16T05:16:43Z")

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1.Problem description:The normal temperature is below zero, and the laser tube is used every half a month. Is it necessary to add antifreeze? If necessary, how much should be added?  
2.Solution:If you don’t use it frequently, it is recommended not to add antifreeze, and empty the water  
inside the laser tube and the industry chiller.