Last updated: 2026-05-23
Louisiana Indoor Air Quality Guide
Louisiana has more mold-related emergency room visits than any state except Florida
Zone 2 — Moderate potential (2-4 pCi/L)
Radon Levels in Louisiana
Average Radon Level
1.9 pCi/L
EPA Zone
Zone 2
Louisiana is mostly Zone 2 with lower radon potential. The Mississippi Delta's sedimentary geology doesn't produce significant radon. Some northern parishes show moderate readings.
📋 Testing recommended
Even in Zone 2, the EPA recommends testing every home. Radon varies house by house — your neighbor's low reading doesn't guarantee yours is safe.
Top Indoor Air Hazards in Louisiana
Mold Exposure
HIGH RISKMold releases spores that trigger allergies, asthma attacks, and respiratory infections. Black mold (Stachybotrys chartarum) produces mycotoxins linked to neurological symptoms.
High Indoor Humidity
MODERATEHumidity above 60% creates ideal conditions for mold, dust mites, and bacteria. It also increases off-gassing of VOCs from furniture and building materials. The EPA recommends 30-50% indoor humidity.
Formaldehyde (VOC)
HIGH RISKFormaldehyde off-gases from pressed wood furniture, flooring, and new construction materials. It is classified as a known human carcinogen by the IARC. Levels are highest in new or recently renovated homes.
Louisiana Climate & Air Quality Factors
Year-round extreme humidity makes Louisiana the #2 mold state. Hurricane flooding causes catastrophic water damage. Older French Quarter and plantation homes have lead paint and asbestos throughout.
Recommended Products for Louisiana Homes
Mold Armor DIY Mold Test Kit
Test air quality and surfaces for mold. Results in 48 hours.
hOmeLabs 4500 Sq Ft Dehumidifier
Energy Star rated. Custom humidity control. Auto shut-off. Continuous drain option.
Coway Airmega Mighty2 Air Purifier
Next-gen HEPA air purifier. Covers up to 1,800 sq ft. IEST certified. Eco mode. Covers allergens, smoke, dust, pets, mold.
Airthings 2960 View Plus Air Quality Monitor
Tracks radon, CO2, VOC, PM2.5, humidity, temp, pressure. Wi-Fi connected. Battery powered. Free app.
Disclaimer
State-level radon data from EPA Zone Map. Individual home levels vary significantly. This guide is for educational purposes and not a substitute for professional environmental testing. Test your home regardless of zone designation.
Guidance sourced from EPA, CDC, and Health Canada publications.