Review on 🌬️ Pure Guardian H965AR Ultrasonic Cool Mist Humidifier for Small Rooms - 70 Hours Run Time, 1 Gallon Tank, 320 Sq. Ft. Coverage with Silver Clean Treated Tank - Filter Free Operation, Essential Oil Tray included by Tyler Cash

Um. I flooded it completely and it took me exactly 17 hours maximum. Up to a minute. I know "70 hours" is a low mark, but that's a big difference. I had expected a maximum of 24-35 hours. I'll try it on low level and see if it even gets close to 70. Not impressed. I have a feeling the air is more humid, but I'm wrong. Update: 28 hours on average. Update: 33 hours low with about 2 inches of water left. Had to stop because the humidity was 27% after running for so long. So I bought a humidity meter and my room was at 27% humidity which is dry. It should be in the range of 30-60%. I turned it back up to see if there was a change. If I set it to high right above the device it goes to 99% so both work. I hope he can get my room at least in 40s otherwise he is useless to me. To update. I returned it because when it was on 24 hours a day the humidity went from 27% to 31%. Never got higher. For me it was a waste.