Everything about this website screams alternative medicine scam. "Integrative medicine" and "book a consultation" is not what you want to see on your mold testing lab's website. It means they're out to sell you things. I can almost guarantee that everybody who gets one of their test kits will get, surprise, a positive result that requires more expensive consultations and treatments from them.

The AirAnswers website blocks visitors from the EU.

Most likely because they are in violation of GDPR and have no plan to care about data privacy. This is a really big red flag for all AirAnswers customers.