How we write our guides

Simple rules, so you know what you're reading.

Cause first

Covering a smell or running a dehumidifier against a leak doesn't work for long. Every guide starts by finding and removing the cause.

Sources

We rely on government and expert sources such as the U.S. EPA, USDA, Department of Energy, ENERGY STAR, and animal welfare organizations. Each guide lists its sources at the bottom. Manufacturer claims are not treated as proof.

Products

We only suggest a product when it fits the problem, and we say what it won't do. We don't publish prices, because they change. We don't copy customer reviews.

Safety

We follow the label on every cleaning product and never suggest mixing chemicals. Large mold problems, sewage, flooding, and structural leaks go to a professional.

Updates and corrections

Each guide shows the date it was last updated, and that date only changes when we actually review it. If you spot a mistake, tell us and we'll fix it.