DNA analysis of
indoor climate

The best tracking tool for combating moulds

We are specialist within mould DNA analysis

What is mould?

What is mould?

In natural environments, moulds are everywhere. In domestic environments, however, they often develop out of sight, making them difficult to locate.

Learn more about moulds

How to locate moulds

Using HouseTest's newly-developed DNA analysis, locating concealed moulds in your home is quick and effective.

Learn more about our DNA analysis

How dangerous are moulds?

Certain types of mould release toxins known as mycotoxins, which make mould-infested homes a health hazard.

Learn more about mould health hazards

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Test for mould in your home

DNA can be used to register mould and bacteria in a Dust-analysis, because the dust contains traces and fragments from these organisms, if they exist in the home.

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Dust-analysis (screening for concealed moulds)

Dust is collected from e.g. doorframes and shelves, using a swab, and shipped for analysis to HouseTest`s laboratory. This method is the most frequently used of HouseTest`s DNA-analyses and is used for screening a building for concealed mould growth. The dust-analysis can be used by building professionals and private homeowners.

Air samples

Air samples can also be used when screening for concealed moulds, which for example can be used in cases where it is not possible to take a suitable dust sample. The sampling can be taken as a so-called activated air sampling where the results are rated on HouseTest`s A-F scale, which is also used on the dust-analysis, or as a passive air sampling which is not rated and requires an outdoor reference sample. Air samplings can only be performed by professionals.


Sampling is done by swabbing directly on a microbiological growth and is used for determining the species-composition. The sample is only offered to professionals.


The cleaning-test is developed to evaluate a final clean-up, conducted after mould remediation. Please note that it is the final clean-up and not the mould remediation which is

being assessed. The data are evaluated on the basis of predetermined criteria, and thus the cleaning is either approved or dismissed.

Sampling is done by an activated air sample and can only be done by professionals.

Ann Dorte Pørneki


[email protected] +45 25 21 15 66

Jonas Nørrelund Lindgreen

CEO, M.Sc, Ph.D.

[email protected] +45 40 99 52 25


Our specialist have a wide amount of knowledge within test of mould, so if you have any questions, ideas or suggestion, you are welcome to contact them.

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