How To Use Progressive Web App aka PWA On 420 Magazine Forum
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I do not know about a Vivosun or any brand name fan but I have been running a basic floor fan for 14 to 15 hours a day, every day, for 6 years now. It was used when I found it after someone threw it in the trash. I washed it, let it dry, turned it on and tightened up what needed tightening and used it in the house for several summers before I decided to use it in the grow room.....how will they last blowing 24/7.