Humidifiers are devices that help increase the moisture levels in dry air, making it more comfortable to breathe. Some common synonyms for "humidifiers" include 'moisture control systems,' 'air humidifiers,' 'moisture generators,' 'air moisturizers,' and 'humidification systems.' Each of these terms refers to devices that add moisture to the air, making it easier to breathe, helping prevent dry skin and cracked lips and easing allergies or asthma symptoms. Some variations of humidifiers include cool-mist humidifiers, warm mist humidifiers, and ultrasonic humidifiers. No matter the type, humidifiers provide much-needed moisture to the air, making it more comfortable and healthier for people to breathe.