When I moved into my apartment, I didn't think about radon until my neighbor mentioned testing for it. Turns out, it's a colorless, odorless gas that can seep in from the ground, and it's pretty common in basements and ground-floor units. I ordered a simple test kit online, left it in my bedroom for a few days, and sent it to a lab. It gave me peace of mind knowing my family and I aren't breathing in anything harmful. radon testing apartments 4