Tag: air-quality

How to Read the Air Quality Index (AQI): What the Numbers and Colors Actually Mean

Green means good, maroon means hazardous — but what do the AQI numbers between them mean for your health? A complete guide to understanding and acting on air quality data.

How to Improve Indoor Air Quality Without an Air Purifier: 10 Science-Backed Methods

Before buying an air purifier, most homes can dramatically improve air quality with free or cheap changes. Here are 10 methods backed by EPA and Harvard research.

Seasonal Indoor Air Quality Guide: Spring Allergies, Summer Humidity, Fall Wildfires, Winter Dry Air

Each season brings different indoor air quality challenges. Here's what to expect — and exactly what to do — for spring pollen, summer humidity, fall wildfire smoke, and winter dryness.

Air Purifier vs Humidifier vs Dehumidifier: Which One Do You Actually Need?

These three devices solve completely different problems. Here's how to tell which one you need — and why buying the wrong one makes things worse.

Kitchen Air Quality: Why Your Gas Stove Is Polluting Your Home (and What to Do About It)

A 2022 Stanford study found that gas stoves leak methane and nitrogen dioxide even when turned off. Here's what the science says about kitchen air pollution — and the practical steps that actually reduce your exposure.

MERV Ratings Explained: Which HVAC Filter Should You Use for Better Indoor Air?

MERV 8, MERV 11, MERV 13 — the numbers on furnace filters actually mean something. We explain what each rating catches, when to upgrade, and when a higher MERV can damage your system.