4 ms·
You can buy a cheap tester for TDS (total dissolved solids) for <$20. Test the water before pouring it into any ultrasonic humidifier.
by kccqzy 11mo ago
You can buy a cheap tester for TDS (total dissolved solids) for <$20. Test the water before pouring it into any ultrasonic humidifier.
- piskov 11mo agoI just switched to evaporative ones like smartmi I’ve mentioned.