Healthy Build Site Assessment
Read a lot, an acreage, or an existing home against a healthy-home vision — its spirit, its features, and the hazards nearby — and get a printable report to carry into the purchase decision, while the choice is still open. About five minutes.
Open tool →MSQPCR Mould Test Interpreter
Enter your ERMI / HERTSMI-2 lab numbers and get a clear, colour-coded reading — scores, per-species elevation, and what the moisture and substrate patterns imply. Compare multiple rooms side by side.
Open tool →Ventilation & Filtration Calculator
Estimate the fresh-air ventilation needed to hold a CO₂ target, then the added filtration (CADR) to reach a 4–6 ACHe clean-air target for particles, wildfire smoke, and dust.
Open tool →Dew Point & Condensation Risk
Find your indoor dew point from temperature and humidity, then check whether your coldest surfaces are at risk of condensation — the earliest signal of hidden moisture and mould.
Open tool →A space to…
Plan a home around the spaces you want to live in, not the rooms it is supposed to have. Answer a few questions, browse more than five hundred spaces in and around a house, and build your own list.
Open tool →