And what about putting salt water into an utrasonic nebulizer? =====================================
Reid, I forgot to mention that if you do use salt, boil the water first and dissolve the salt into it. THEN pour it into the nebulizer. If you are using an ultrasonic humidifier, make sure it's the kind that does NOT have a wick. Otherwise, the particulate matter will be trapped in the wick, instead of being dispersed into the air. Nenah

