A flame humidifier works by heating water to create steam, which is then released into the air to increase humidity levels in the surrounding environment. The flame heats a reservoir of water, causing it to vaporize and disperse as steam through a vent or nozzle.

Yes, flame humidifiers are generally safe to use when operated according to the manufacturer's instructions. However, it's essential to follow safety guidelines and precautions, such as keeping the unit out of reach of children and pets and ensuring proper ventilation to prevent overheating or fire hazards.

Using a flame humidifier can help alleviate symptoms of dry air, such as dry skin, irritated eyes, and respiratory issues. It can also provide relief from symptoms of colds, allergies, and asthma by moisturizing the air and reducing irritation in the respiratory tract.

Regular maintenance and cleaning are essential to ensure the proper functioning of a flame humidifier and prevent the buildup of mold, bacteria, and mineral deposits. It's recommended to clean the reservoir and components regularly with mild soap and water and to replace any filters or cartridges as needed.

Some flame humidifiers are compatible with essential oils and feature a separate compartment or tray for adding aromatherapy oils to the water reservoir. However, it's essential to check the manufacturer's instructions and ensure that the use of essential oils is safe and compatible with your specific model of humidifier.