The science of the home you live in.

The legal limit is not the line your body cares about. This library reads your water, air, and light against the one that is, then tells you where your home stands.

Stasis Home ResearchEvery claim on this page is graded against peer-reviewed health research and linked to its primary source.Updated 2026-06

Start with a question

Is my tap water safe to drink?For most people on a US public water system, tap water will not make you sick today.Why is the air inside my house worse than outside?A modern home seals tight and traps what gets made inside it, so the air indoors often reads worse than the air on your street.Is it bad to sleep with the lights on?Yes, even a low light left on overnight is worse for you than most people realize.How do I find out what is actually in my water?Two sources tell you.Do I need an air purifier?An air purifier helps if your problem is airborne particles: cooking smoke, wildfire haze, traffic soot, pollen, or pet dander.Do I need a water filter?For most US homes, yes.
All the guides

The Three Invisibles

WTRWaterWater is a chemistry problem.What is dissolved in your tap, and the gap between the legal limit and the health line.15 entriesAIRAirAir is a time problem.What you breathe at home all day and all night, measured over a week, not a moment.9 entriesLGTLightLight is a body-clock problem.How the light in your rooms sets, or breaks, your sleep and your daytime alertness.1 entry

Before you buy anything

Filters, purifiers, ventilation, and the rest, graded against the research. Including the popular fixes that do not work at all.

What works, and what does not

Nobody authoritative owns the home-environment interpretation layer. Your utility reports to the legal limit; your devices report a number; no one tells you what either means for your body.

That is the layer Stasis owns. We grade every reading against peer-reviewed health research instead of the legal limit, because the limit is set for citywide feasibility, not for the dose your body sees. Same number, different question: is this allowed, or is this good for you.

The full methodology: how we grade what we find

Curious what is actually in your home?

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