What are the limitations of DIY radon testing kits?

DIY radon testing kits are useful for initial assessments but have some limitations:

• Accuracy varies – Short-term tests can be affected by weather and ventilation changes. DIY kit might not be as sensitive and may not detect low levels of radon.
• Limited placement knowledge – Professionals know the best locations for detectors.
• No expert interpretation – DIY results may not provide clear guidance on next steps.
  For critical assessments, professional surveys are more reliable.