®Health Wiki
Practical notes on indoor air and drinking water health: common questions, how to judge the standards, and everyday precautions.
All Articles
Total: 5 articles
How to Read the Limits on an Air Quality Test Report
Different standards assume different scenarios and sampling conditions — knowing the limit tells you whether the data actually passes.
Read more →Windows, Fresh Air Systems or Purifiers: Which One Do You Need?
The three approaches solve different problems — using the wrong one wastes money and results.
Read more →Household Drinking Water: Tap, Filtered or Bottled?
Tap water usually leaves the plant compliant, but "water at the tap" is affected by the pipe network and secondary supply — the choice depends on local water quality.
Read more →Mould, Humidity and Allergies: The Overlooked Air Variables
Compared with formaldehyde, dampness brings mould and dust mites that are often the real triggers of allergies and discomfort.
Read more →New Cars and Cabin Air: The Overlooked Enclosed Space
Interior emissions rise sharply under hot sun, while windows stay shut and ventilation is limited — the cabin deserves real attention.
Read more →Need air or water testing for your space?
Cal Inc. builds treatment plans on test data: test first, treat second, hand over only when the re-test passes.
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