Advice on humidifiers
How to measure relative humidity?
Relative humidity is easy to measure with a hygrometer, such as Sense. If the percentage on the hygrometer is between 40 and 60 percent, the humidity in the room is optimal. If the percentage is below 40 percent, the humidity is low, in this case the air is too dry. If the percentage is higher than 60 percent, on the other hand, the humidity is high, in this case the air is too humid. Both scenarios are accompanied by various symptoms that you can recognise. In practice, however, these symptoms are not always linked to the cause - read: high or low humidity.
Save on your energy bill
An absolute temperature of 19°C feels like only 17°C at 10-20% humidity, while it feels like 19°C at 60% humidity.
You can compare this with a sauna session - although this ritual leads you to believe that the temperature in the room is much higher, only the air humidity has risen. Higher air humidity therefore means that you can save on energy costs, while the temperature in the room remains the same (and not unimportantly pleasant).
Ultrasonic humidifier
An ultrasonic humidifier, such as Neo, has a small metal plate that vibrates at an ultrasonic frequency. These vibrations convert water from the device into cold, visible mist. This mist is then blown into the air, increasing the humidity in the room.
Quiet in operation
Safe, cold mist
A rapid increase in humidity
How does perceived temperature work
Perceived temperature (or wind chill) is largely determined by air humidity, as water is an excellent transmitter of heat. When humidity is low (i.e. the air contains little water vapour), the human body loses heat more quickly, which means that the perceived temperature can be colder.
The reverse principle works exactly the same. You can compare this with a sauna session - although this ritual makes you think that the temperature in the room is much higher, only the humidity has increased.
40%
At 40% humidity, an absolute temperature of 27°C feels like 27°C
90%
At 90% humidity, an absolute temperature of 27°C feels like 30°C
0.6°C
Each 10% increase in humidity raises the perceived temperature by 0.6°C