You can buy test kits that you expose to your rooms’ air for some time, and then a lab will grow the mold inside the Petri dishes to “amplify” what has been col

You can buy test kits that you expose to your rooms’ air for some time, and then a lab will grow the mold inside the Petri dishes to “amplify” what has been collected in your home. That may be expensive, though, and not easily available everywhere, and perhaps even prone to contamination “in transit”?