Review on 🔒 USA-Made LOCKDOWN GoldenRod Dehumidifier Rod: Low Profile Design & Easy Installation - Ideal for Vault Humidity Control & Rust Prevention by Tyler Cooley

I don't know why there is so much drama in some reviews. The one I have says "Made in America"and does the job. Basically, you buy a very small heater to heat the air in your vault and thus dehumidify the air. I also bought a digital hygrometer to measure temperature and humidity. Make sure you choose the right length. You probably want the largest your safe can hold. Also, it runs on AC power, so your safe must have an opening for the AC line.