Indoor Air Quality testing

The effects of VOC's on human health are well documented, despite being able to decay naturally they can persist in the environment for a long time


Formaldehyde, for example, can persist in furniture for up to 6 months. VOCs can accumulate in buildings from a variety of sources, there are many cases where new build occupancy starts whilst VOCs are still high.

The formaldehyde concentration in indoor air at post-construction should not exceed 0.1mg/m3, averaged over 30 minutes. The total volatile organic compound (TVOC) concentration in indoor at post-construction should not exceed 0.3mg/m3, averaged over 8 hours.

ActionsActions and advice

Formaldehyde and TVOC measurements should be carried out in accordance with ISO 16000-2 and ISO 16000-5 respectively. Sampling should be performed only in rooms that are expected to be occupied for long periods of time such as bedrooms, living rooms, classrooms, offices, etc.

A representative number of these rooms should be sampled. In larger rooms, such as open-plan office areas, additional sampling locations may be required in order to understand the homogeneity of the indoor environment.

HelpHow can we help?

We can prepare IAQ plans (1 credit) as part of the preconstruction design process and carryout air qaulity testing (1 credit) post construction inline with the BREEAM HEA 02 standard.


Knowledge Centre Article

Expand your knowledge on this topic by reading our informative article

Poor Indoor Air Quality - The Complete Guide
Poor Indoor Air Quality - The Complete Guide


Indoor air quality has been identified as one of the top five most urgent environmental risks to public health, and as a responsible employer – you need to ensure your employees are safe and healthy whilst in the working environment.

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