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Frequently Asked Questions
How accurate are these practice questions?
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Our practice questions are built from official ESCO study materials and reviewed by certified HVAC technicians to closely match the format, difficulty, and content of the actual EPA 608 certification exam. They cover all the key topics including refrigerant handling, ozone depletion, and Clean Air Act regulations.
Is my test history saved securely?
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Yes. Without an account, results stay in your browser's local storage. With a free account, your progress syncs securely to your account so you can pick up on any device. We only store what's needed to run the product — see our privacy policy — and you can delete your account and data at any time.
Can I use this on my mobile device?
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Absolutely! Our practice test is fully responsive and works perfectly on smartphones, tablets, and desktop computers. You can study anywhere, anytime.
Do I need to create an account?
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Not to start — you can practice sample tests immediately with no registration. A free account unlocks the full 569-question bank and saves your progress across devices. Pro ($14.99 lifetime) adds the AI Tutor, weak-spot drills, and advanced analytics.
What topics are covered in the practice test?
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The practice test covers all major EPA 608 certification topics including: refrigerant recovery and recycling, ozone depletion, Clean Air Act regulations, equipment types, certification requirements, and proper handling procedures.