Blog
Evidence-based articles on PFAS contamination, lead in tap water, PM2.5 air quality, and proven filtration. Written for people who want accurate information, not vague warnings.
Is Tap Water Safe to Drink? What Public Data Actually Shows
US tap water meets legal standards for most people — but legal and safe aren't the same. Here's what the public data actually says about PFAS, lead, disinfection byproducts, and what to do if you're concerned.
PM2.5 Air Quality by City: The Most Polluted US Cities and What to Do About It
Annual PM2.5 averages by US city, compared to EPA (9 µg/m³) and WHO (5 µg/m³) standards. Bakersfield, Fresno, and several California cities consistently rank worst. Here's what the data shows and how to protect indoor air quality.
Best Water Filter for PFAS Removal in 2025: Reverse Osmosis vs Carbon vs Pitcher
Only NSF-certified reverse osmosis and specific activated carbon filters reliably remove PFAS from tap water. Here's an honest comparison of each technology with specific product recommendations.
Lead in Tap Water: How to Know If Your Home Is at Risk
Lead in tap water has no safe level for children. Here's how to identify whether your home has lead pipes, how to test your water, and the only reliable way to reduce exposure at the tap.
PFAS in Drinking Water: What the 2024 EPA Limits Actually Mean
The EPA set the world's strictest PFAS drinking water limits in 2024: 4 ppt for PFOA and PFOS. Here's what those numbers mean, who is affected, and what you can do now.