Unfortunately, humidifiers can be not only beneficial, but also harmful to human health.
But much depends on the operating conditions of these devices - disadvantages may appear when using a specific model of the device.
It is also important to understand that a humidifier is an adjunct and should not be considered a panacea.
In addition, you must follow the operating instructions.
The problem is with the nasal mucosa - if the room is excessively dry, it dries out, which negatively affects the ability of the mucosa to block viruses and bacteria.
Excessive amounts of bacteria entering the body have a negative impact on immunity.
Once again, we draw your attention to the importance of following the operating rules - for example, if you do not fill it with clean water, the device will simply spray pathogens.