You can safely expose the TheraFrost chiller to elements like rain and snow. Of course, the same applies to the rubber tub. I placed my TheraFrost in our backyard, where it gets regularly exposed to rain. Sometimes, I gently hose down the chiller when it’s dusty or covered in pollen. However, I recommend being careful with pressured water as it could get inside and damage delicate electronics. So don’t pressure wash your TheraFrost.