618-685-0557info@breatheeasysi.com
breatheeasysi.com

Radon Test Prep Checklist

For sellers, occupants, and listing agents. Following these steps keeps your 48-hour radon test valid under Illinois protocol and avoids costly retests that can delay closing.

Starting 12 hours before the test, and for the full 48 hours

• Keep all windows closed on every level of the home.
• Keep exterior doors closed, except for normal, brief coming and going.
• Normal heating and central air conditioning are fine. Set the thermostat to a normal setting.
• Do not run whole-house fans, attic fans, window fans, or any system that brings in outside air.
• Do not use fireplaces or wood stoves unless they are the home’s main heat source.
• If the home has a radon mitigation system, leave it running as normal.

During the test

• Do not move, unplug, cover, or touch the radon monitor.
• Keep pets and children away from the monitor.
• Normal daily living is fine — cooking, showering, and laundry won’t affect the test.
• Let us know about any showings scheduled during the test so visitors can be reminded to keep doors and windows closed.

Before we arrive

• Provide access for setup and for pickup at least 48 hours later (lockbox or occupant).
• Clear a small space in the lowest livable level of the home where the monitor can sit undisturbed.
• Tell us if the home has a radon mitigation system or any recent foundation work.