HVAC 608 Prep: EPA 608 Exam

Get ready for the EPA 608 certification exam with 356 original practice questions for Core, Type I, Type II and Type III, each with a clear explanation, in English or Spanish.

HVAC 608 Prep is an exam prep coach for HVAC technicians, apprentices and trade-school students who need refrigerant certification. It works fully offline, needs no account, and reads your progress like a gauge: every section has a needle and a red line at the 70% pass mark, so you can see exactly how far you are from passing.

Your next session, picked for you
The home screen shows your readiness for Core and each Type, your daily streak and one recommended session: Today's 10, the questions due for review, your weakest topics, or a mock exam. One tap and you are studying.

Practice with instant explanations
Answer a question and see right away whether you got it, why the right answer is right, and where the fact comes from in the regulations (40 CFR Part 82, Subpart F) or EPA guidance. Answer options are shuffled every time, so you learn the fact, not the letter.

Mock exams in the real format
Each EPA 608 practice test has 25 questions drawn across every topic, a 30-minute clock and the 70% pass mark: 18 correct out of 25. Flag questions, jump around with the question grid, and submit when you are ready.

An exam in progress is saved, so a phone call does not cost you your answers. The Universal mock exam runs all four sections, 100 questions, and the result screen shows which certifications that score would earn. The timer can be switched off for relaxed practice.

Study the topics that need it
Each section breaks down by topic: ozone depletion, the Clean Air Act and Montreal Protocol, recovery and recycling, evacuation levels, leak repair, safety, shipping, small appliances, high-pressure systems and low-pressure chillers. Tap a topic for a short practice test on just that.

Missed questions come back on a spaced review schedule, just before you would forget them.

Review every answer
After a set or a mock exam, go through each question with your answer, the correct one and the explanation. Filter to the ones you missed, and save any question to come back to later.

Key facts for every section
Short cards with the facts the 608 exam asks about most, such as refrigerant recovery cylinder rules, required evacuation levels and leak repair thresholds.

English and Spanish
The whole app, questions and explanations included, is available in Spanish, the other language the EPA 608 exam is given in. Your progress carries over when you switch.

What is included
• Core: every question, practice, mock exam and key facts, at no cost
• Type I, Type II and Type III: a 10-question sample of each to try
• Pro, a single one-time purchase: all Type I, II and III questions, their mock exams, the Universal exam and key facts, and no ads. No subscription.

The app shows ads, except during a mock exam. A rewarded video in Settings gives a 30-minute ad-free break.

Important
HVAC 608 Prep is an independent study aid. It is not affiliated with or endorsed by the U.S. Environmental Protection Agency or any certifying organization, and its questions are original practice items, not the actual exam questions. A practice score shows where you stand; it does not predict your result on the real exam.

Questions or feedback: [email protected]