Independent, evidence-backed tools to help you make better decisions about the air, water, and light in your home. Built by Hunter — free to use, no sign-up required.
Residential Air Purifier Database
Compare hundreds of residential air purifiers by CADR, filtration type, noise level, room size, and price. Pulls live data from the AHAM Verifide and ENERGY STAR registries so the ratings are always current.
Minnesota Radon Risk Map
Enter your Minnesota ZIP code to see your county's median radon level, EPA action thresholds, and how it compares to state averages. Built on 250,000+ Minnesota Department of Health radon tests from 2010–2020.
Lead Pipe Identification Guide
A 4-step guided check using just a flat-head screwdriver and a magnet. Identify whether your home's water service line is lead, galvanized steel, copper, or plastic, plus what to do next based on what you find.