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Air quality

Formaldehyde in the air - how to recognize and reduce it

Formaldehyde in the air can pollute indoor air unnoticed and cause health problems. In this article, you will find out where formaldehyde is found, how you can measure and detect it and what measures can help reduce exposure. You can also discover smart solutions such as the air-Q to monitor your indoor air quality in real time.

Author:

Lena Bremstahler, Natalie Lament

Date:

10.3.2025

Formaldehyde in the air - invisible danger indoors

Formaldehyde in the air is an often underestimated problem in indoor spaces. It can evaporate from furniture, wood-based materials and other materials and pollute the indoor air. But how dangerous is formaldehyde in the air really, and what can you do about it?

How is formaldehyde formed in the air?

Formaldehyde in the air is caused by outgassing from furniture, paints, adhesives and wood-based materials. The concentration can increase, particularly in poorly ventilated rooms, which can cause health problems such as eye irritation, headaches or respiratory problems.

Measuring formaldehyde - how to determine exposure

If you suspect that formaldehyde in the air is affecting your indoor air quality, you should measure it. There are various methods for this:

  • Test kits for home use - easy to use, quick results
  • Air measuring devices - continuous monitoring of the concentration
  • Professional indoor air analysis - precise measurements by experts

air-Q: Smart solution for formaldehyde measurement

A particularly practical measuring device is the air-Qan intelligent air analyzer that can precisely measure formaldehyde in the air. The air-Q detects pollutants in real time and displays detailed analyses of indoor air quality. Thanks to its smart functions, you can use the app to see exactly when and where formaldehyde levels are rising - ideal for taking targeted measures to reduce them.

Formaldehyde in the home - where is the danger?

Formaldehyde in the home often comes from the following sources:

  • New furniture made from chipboard
  • Laminate and parquet flooring
  • Carpet adhesive and wall paints
  • Certain household cleaners

Regular air exchange helps to reduce exposure to formaldehyde in the air.

Formaldehyde in furniture - especially with new furnishings

New furniture can release high levels of formaldehyde into the air. Chipboard and pressed wood in particular contain adhesives that contain formaldehyde. To minimize exposure:

  • Buy furniture with low emissions (e.g. with the "Blue Angel" certificate)
  • Let new furniture air out before moving in
  • Use air purifiers with activated carbon filters

Formaldehyde in wood - not just a problem with furniture

Wood is a natural raw material, but treated wood products can contain formaldehyde. Glued products such as plywood or MDF boards in particular often contain formaldehyde, which gradually escapes into the air. Look out for low-emission wood products.

Detecting formaldehyde - fast and reliable testing

There are various test options for detecting formaldehyde in the air:

  • Indicator test strips: Color change indicates stress
  • Electronic measuring devices: More precise measurement
  • Laboratory tests: detailed analysis by experts

If you notice a high level of exposure, you should take measures to reduce formaldehyde in the air.

Conclusion: How to minimize formaldehyde in indoor air

Formaldehyde in the air is a serious problem, but there are solutions. Regular ventilation, low-emission materials and targeted measurements help to minimize exposure. Pay particular attention to furniture, wood products and paints - this way you can ensure healthier indoor air!

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The air-Q pro is now brand new with integrated formaldehyde sensor

Summary

What is formaldehyde?
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Formaldehyde is a chemical compound found in many building materials, furniture and paints. It can evaporate from these materials and thus enter the indoor air.
Is formaldehyde in indoor air dangerous?
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Yes, formaldehyde can be harmful to health, especially in high concentrations. Regular measurement and preventive measures are therefore advisable. Formaldehyde can cause eye irritation, headaches, respiratory problems and, in high concentrations, even long-term damage to health.
Why are furniture and wood products a source of formaldehyde?
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Chipboard, MDF boards and glued wood products often contain adhesives that emit formaldehyde. Look out for certified low-emission products.
How can I reduce formaldehyde in my home?
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Regular ventilation, low-emission furniture and paints and the use of air purifiers with activated carbon filters help to reduce formaldehyde exposure.
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