Hey PH! I built EPA608Pass because I noticed something wild about the HVAC industry. The EPA 608 certification is required by federal law for every technician who handles refrigerants in the US. Over 200,000 people take this exam every year. Yet the study options are terrible — free practice tests are years out of date, and paid prep courses charge $200-400 for what is essentially a multiple-choice test. I used AI to generate 500+ accurate, exam-mirroring practice questions with detailed explanations for every single answer. The entire platform costs $29-39, one-time payment. No subscriptions, no recurring fees. We also built a full Spanish version because a huge portion of the US HVAC workforce is Spanish-speaking and almost zero quality Spanish prep resources exist. The free practice test has 25 questions and requires absolutely no signup. Just open the site and start practicing. You get your score instantly with a section-by-section breakdown showing exactly where you need to study more. Would love your feedback — especially if you know anyone in the trades or studying for their EPA certification!

EPA608Pass AI

Pass the EPA 608 exam on your first try — guaranteed

Pass the EPA 608 exam on your first try — guaranteed