About The Indoor Forecast

What this site is

The Indoor Forecast explains the air inside American homes, one room at a time. The attic bakes in summer. The basement sweats in spring. The bedroom runs stale at night with the door shut. Each of those rooms has its own numbers, and each number has a plain meaning.

The guides cover the readings you can take yourself, such as humidity, CO2 and temperature, and the problems they point to: mold, window condensation, dust, stuffy bedrooms and damp basements.

Why room by room

One reading for the whole house hides the problem. 55 % humidity is fine in a living room and a warning sign in a basement that never dries. So every guide starts from the room, the number that matters there, and the one change that moves it.

How we pick what we recommend

We start from what a reader needs to change, not from a list of products. A product gets a guide only when it measures or fixes that problem. Then we do three things:

• Check every threshold against a published source, such as EPA guidance on indoor humidity or ASHRAE standards for ventilation and comfort. When a number is only a rule of thumb, we say so.
• Say what a product cannot measure. A cheap sensor can be off by a few points, and we tell you that before you buy.
• Say when the fix is not worth buying. An open window or a fan often does more than a new gadget.

Who pays for what

Nobody pays to appear in a guide, and no brand buys a place in a ranking. The Indoor Forecast takes part in the Amazon Associates program. When you buy something through one of our links, we may earn a commission at no extra cost to you. That commission is the only money we make from products, and it does not decide what we recommend.

Affiliate links are marked in the guides. How they work, and what they share with Amazon, is in our Privacy Policy.

Who writes it