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Testing the Lasko 3720 WeatherShield box fan from 2013 or 2014 for Spring 2023. I have not performed any maintenance to this fan other than occasionally blowing out the motor with compressed air. The bearings sound a little rattly when cool but after a few minutes it seems copacetic.
The only problem appears to be the handle, which has been broken for a while but I just ignored it because I never really moved the fan around. Now that I may use it in different parts of the house from time to time, I will probably fix the handle this year.