By INDEX Editorial Team | Based on peer-reviewed research - The Problem Most People Don't See Coming: Wildfire smoke doesn't need to be visible to be dangerous. By the time you smell it, fine particulate matter — classified as PM2.5,…
By INDEX Editorial Team | Based on peer-reviewed research -
By INDEX Editorial Team | Based on peer-reviewed research - When people think about indoor environmental health, they often think first about air. That makes sense. Air quality matters. But many exposures do not stay neatly suspended in the air…
By INDEX Editorial Team | Based on peer-reviewed research - When a surface looks clean, is it actually clean enough to reduce hygiene risk? That question matters in homes, schools, healthcare facilities, offices, and commercial facilities. It also matters for…
By INDEX Editorial Team | Based on peer-reviewed research - If you have ever opened a bedroom door in the morning and felt the air seemed stale, or noticed a conference room gets stuffy long before a meeting ends, a…
By INDEX Editorial Team | Based on peer-reviewed research - A practical, science-first framework for travelers, facility teams, and health-conscious professionals who want better information—not guesswork—about hotel room air. When people talk about a “clean” hotel room, they usually mean…
By INDEX Editorial Team | Based on peer-reviewed research - If someone in your home, workplace, or building vapes indoors, a reasonable question follows: does it affect indoor air quality in a meaningful way? The short answer is yes. The…
By INDEX Editorial Team | Based on peer-reviewed research - Some air-cleaning devices may reduce certain pollutants while creating others. Here’s how to evaluate the tradeoffs using a science-first, criteria-based approach. If you are shopping for an air purifier because…
By INDEX Editorial Team | Based on peer-reviewed research ─ If your home or building is newer, recently weatherized, or noticeably better sealed than older structures, you may have heard two competing messages: “A tight building is more efficient and…
By INDEX Editorial Team | Based on peer-reviewed research ─ Indoor humidity is one of the most overlooked parts of indoor environmental quality. Many people notice the symptoms before they notice the cause: dry eyes, scratchy throat, static shocks, condensation…