Moldmap Blog

Tips, guides, and insights for finding healthy places to stay

Mold in Hotels: How to Check Your Room Before You Unpack
Travel

Mold in Hotels: How to Check Your Room Before You Unpack

Your hotel might look five-star — but if the air is bad, your health is paying the price. Here's exactly how to inspect any hotel room in under 10 minutes.

By Justin Carlson · July 10, 2026
What to Do If You Find Mold in Your Rental: A Tenant's Action Plan
Guides

What to Do If You Find Mold in Your Rental: A Tenant's Action Plan

You found mold. Now what? A step-by-step plan for documenting, reporting, and protecting yourself — from someone who's been through it.

By Justin Carlson · July 3, 2026
How to Travel Safely with Mold Sensitivity: A Practical Guide
Guides

How to Travel Safely with Mold Sensitivity: A Practical Guide

Traveling with CIRS or mold sensitivity doesn't mean staying home. Here's the system I use to travel confidently — and actually enjoy it.

By Justin Carlson · June 26, 2026
How to Check Your Apartment for Mold Before Signing a Lease
Guides

How to Check Your Apartment for Mold Before Signing a Lease

A practical 12-point checklist from someone who got seriously ill from a "perfectly clean" apartment. What to look for, what to ask, and how Moldmap can help.

By Justin Carlson · June 19, 2026
Black Mold Symptoms: What Every Renter and Traveler Needs to Know
Health

Black Mold Symptoms: What Every Renter and Traveler Needs to Know

Think "black mold" is just an ugly stain? The symptoms of mold exposure range from mild allergies to life-altering chronic illness.

By Justin Carlson · June 12, 2026
Complete Guide to Indoor Air Quality for Hotels, Rentals & Apartments
Guides

Complete Guide to Indoor Air Quality for Hotels, Rentals & Apartments

Your guide to understanding, measuring, and improving indoor air quality — whether you are traveling, renting, or managing properties.

By Justin Carlson · June 5, 2026
What Is CIRS? Understanding Chronic Inflammatory Response Syndrome
Health

What Is CIRS? Understanding Chronic Inflammatory Response Syndrome

CIRS is a measurable, diagnosable inflammatory condition triggered by mold and biotoxins in water-damaged buildings. Here is the guide I wish I had before I got sick.

By Justin Carlson · June 5, 2026
Sick Building Syndrome: How to Know If Your Building Is Making You Sick
Guides

Sick Building Syndrome: How to Know If Your Building Is Making You Sick

Up to 30% of buildings may have air quality problems serious enough to cause health symptoms. Here is how to tell if yours is one of them.

By Justin Carlson · June 5, 2026
Mapping the Invisible: Why Where You Live Dictates What You Breathe
Data Insights

Mapping the Invisible: Why Where You Live Dictates What You Breathe

For millions, health is dictated by something far less visible and far more pervasive: Geography. Here is what the data tells us about the invisible war happening in our walls.

By Justin Carlson · June 5, 2026