All posts sorted from newest to oldest.
Can mosquito bracelets or stickers replace EPA-registered skin repellent? What CDC and EPA guidance says about wearables, patches, ultrasonic devices, and exposed skin.
Already have a smoke CADR number? Use this wildfire smoke CADR calculator to match an air cleaner or DIY filter setup to a bedroom, living room, or smaller clean-air room.
How to verify PFAS water filter replacement cartridges, membranes, and refill bundles under NSF/ANSI 53 and 58 without overreading certification claims.
Should you get a Lyme disease blood test right after a tick bite? CDC and FDA guidance explain early testing limits, symptom timing, tick removal, and when to call a doctor.
SPF 50 vs SPF 30: when is SPF 50 worth it? Use this practical sunscreen comparison for price, texture, label gates, and real-world use.
How to use orange HeatRisk on a 94°F day for household heat planning, older adults, cooling access, transit delays, errands, and evening heat retention.
Compare DEET, picaridin, IR3535, OLE/PMD, and 2-undecanone by EPA label, protection time, child-use limits, and sunscreen order.
Build a wildfire-smoke clean-air room plan by comparing portable air cleaners, HVAC MERV filters, and DIY box-fan filters, with maintenance and ozone warnings.
Does picnic food really go bad after 2 hours? Learn the FDA and USDA danger zone rule, when it becomes 1 hour above 90°F, and why smell is not a safety test.
EPA’s May 2026 PFAS proposed rules affect public-water-system policy, not household filter certification. Here’s what changes and what to check before buying.
