i have a 70x70x160cm tent and a cheap Standart ultrasonic humidifier. its sensor is very inaccurate and im having trouble cleaning it. i only use distilled water. i clean it with vinegar every week and the water tank still smells bad. i fill the base, tank and a cup to put the filter in with vinegar and water and let it sit for 30min, then i scrub everything i can reach. i dont know what im doing wrong. i dont use it anymore cause i dont think its safe. i read that ultrasonic humidifiers are the worst to clean, but thats all there is to buy. im looking into buying something like the spider farmer or ac infinity humidifier with a hose. does anyone know if theyre any good?