quiet living room with the air-Q on the coffee table between armchairs, for a good indoor climate
Air quality

Hygrostat: What is it - and can the air-Q do it?

A good indoor climate depends crucially on the right humidity level. Values that are too high or too low can have a negative impact on health, well-being and even the fabric of the building. Many people therefore turn to so-called hygrostats. But what exactly is a hygrostat - and can the air-Q perform this task?

Author:

Lena

Date:

31.7.2025

Brief summary

The right humidity is important for health, well-being and buildings. A hygrostat measures the humidity and controls appliances automatically. The air-Q also measures precisely, but only takes over control in conjunction with a smart home system. This makes it a flexible and smart hygrostat replacement with many additional functions.

What is a hygrostat?

A hygrostat is a device that measures the air humidity and automatically controls devices to regulate the humidity if required - for example humidifiers or dehumidifiers. If a previously defined threshold value is reached, the connected device switches on or off automatically. The aim: a constantly pleasant and safe indoor climate.

A classic area of application is cellars, conservatories, greenhouses, but also living spaces where mold or dry air can be a problem.

What does the air-Q measure?

The air-Q measures relative humidity precisely and continuously - along with over a dozen other air quality values. It therefore provides a comprehensive picture of your indoor climate. Humidity measurement is therefore a central component of its analysis functions.

What doesn't the air-Q do?

What the air-Q does not do directly: It does not control devices such as dehumidifiers or humidifiers. A classic hygrostat usually has precisely this control function integrated. The air-Q is limited to precise recording and analysis - and thus opens up new possibilities.

How does the air-Q become a hygrostat?

In combination with a smart home system such as Home Assistant, openHAB or ioBroker, the air-Q becomes the intelligent control center for your indoor climate.

For example, you can define:

  • "If the humidity rises above 60 %, activate the dehumidifier."

  • "If the humidity drops below 35%, switch on the humidifier."

The air-Q provides the precise sensor data for this - your smart home takes over the automatic control. In this combination, the air-Q fulfills all the functions of a hygrostat - only smarter, more flexible and more transparent.

What advantages does the air-Q have over a hygrostat?

A classic humidistat regulates the humidity - and that's it. The air-Q offers much more:

  • Multi-sensor technology: CO₂ as well as humidity, particulatestemperature, VOCsand many other values.

  • Real-time data analysis: understanding air quality instead of just regulating it.

  • Notifications & warnings: You are automatically informed of critical values.

  • Long-term evaluation: identifying trends and analyzing causes.

  • Open interfaces: Ideal for smart home integration.

Conclusion: Why is the air-Q better?

The air-Q is not a hygrostat in the classic sense - but it can do more than any conventional hygrostat. Thanks to its precise humidity measurement and the option to integrate it into smart home systems, it becomes an intelligent component for a perfectly controlled indoor climate. And the best thing is that you always have full control and an overview - not just of the humidity, but of all relevant air values in your home.

References

The cover image was created with Canva's AI.

Breathe easy with air-Q
air-Q analyzes your indoor air and detects pollutants. For a home where you can breathe freely!

Summary

What is a hygrostat?
keyboard_arrow_down
A hygrostat measures the humidity and automatically controls devices such as humidifiers or dehumidifiers. As soon as a set threshold value is reached, it switches the connected device on or off. This ensures that the humidity remains constant at the desired level.
Can the air-Q be used as a hygrostat?
keyboard_arrow_down
The air-Q is not a classic hygrostat, as it does not directly control any devices. However, it measures humidity precisely and continuously - along with many other air quality values. In conjunction with a smart home system, it can take over the control of humidifiers or dehumidifiers.
What values does the air-Q measure?
keyboard_arrow_down
In addition to relative humidity, the air-Q records over a dozen other parameters, including CO₂, particulates, temperature, VOCs and many more. This gives you a comprehensive picture of your indoor air quality.
Can the air-Q automatically switch devices on or off?
keyboard_arrow_down
No, not directly. The air-Q provides the measurement data. However, you can set up automations via a smart home system such as Home Assistant, openHAB or ioBroker.
No items found.
No items found.
air-Q Air Quality Meter

Monitor air quality, all air components and environmental influences with the air-Q. For your health and performance.