Knowledge

Everything Coridum knows about the indoor environment, in one place: what each factor is, what the evidence says, and the numbers behind it — with sources.

211

Glossary

The indoor environment A–Z: factors, their sources, health outcomes, interventions, standards and measurement methods. Factor pages carry limits, health effects and how each is measured.

 6

Articles

One question per article, answered directly and backed by peer-reviewed studies curated in the Coridum Knowledge Base.

 2

Data

Citable, versioned tables: exposure limits across jurisdictions, evidence summaries and, in time, aggregated measurements from Coridum devices.

 2

Tools

Small calculators for one step of the chain each — unit conversion, emission rate to concentration. Every tool shows its formula, its assumptions and where the result stops being reliable.

Latest

Start from where you are

I have a symptom or a diagnosis

Conditions & symptoms

Asthma, eczema, headaches, poor sleep — what in the indoor environment is linked to it, and how strong the evidence is.

38 entries · 2 articles I bought or installed something

Products & materials

Flooring, furniture, paints, cooking, candles — what they emit, for how long, and what to look for on the label.

30 entries · 1 article I measured something

Factors

Particles, gases, humidity, mould, radon — what the number means and where the limits are.

20 entries · 3 articles I want to fix it

What helps

Ventilation, filtration, source control — what the evidence says works, and what does not.

7 entries I need the rule

Limits & bodies

WHO, EU, national decrees, ASHRAE, ISO — who says how much is too much.

9 entries I want to measure it properly

Measuring

Sensor principles, reference methods, averaging times, what a cheap monitor can and cannot tell you.

19 entries

Indoor environment factors