The EPA 608 Study Pack

66 pages you can print and take with you. Every number the exam tests, condensed onto one sheet, plus two complete practice exams with worked answer keys.

The 305 practice questions on this site stay free. Permanently. You are not buying access to something we took away. You are buying the version that works in a truck with no signal, on paper, the night before.

What is in it

• The numbers sheet. Evacuation levels, leak rate triggers, repair deadlines, recovery requirements, passing scores. Nearly every quantity the exam asks about, on two pages. If you revise one thing the night before, it is this.
• The unit trap, spelled out. The evacuation table mixes inches of mercury vacuum with millimeters of mercury absolute. Those measure in opposite directions, and it is the most common way to lose a point on that table.
• Two full 100-question practice exams, sampled to the official domain weighting, with no question repeated between them.
• Answer keys that explain. Every answer carries its reasoning, so a wrong one teaches you something instead of just marking you down.
• Certification types and equipment. Which card your actual work needs, and which type covers which machine.

Where the numbers come from

Every figure was checked against the Code of Federal Regulations, not against somebody else's study guide. The exam blueprint is published in federal regulation at 40 CFR Part 82, Subpart F, Appendix D, which is a government edict and so belongs to nobody.

The questions are original. None are reproduced from a certifying organization and none are taken from a real exam. Anyone selling you real exam questions is selling you something they should not have.

Refunds

Find a factual error in the pack? Email hello@hvacexamlab.com within 30 days. We correct it and refund you. That is the accuracy guarantee: find a verified factual error, or you do not pay. It is an instant download you keep, so there are no change-of-mind refunds.

Before you buy

Work through the free 100-question simulation first. If you are already passing it comfortably, you probably do not need this pack, and we would rather say so than take $29 from someone who is ready.

HVAC Exam Lab is an independent study resource. It is not affiliated with, endorsed by, or approved by the U.S. Environmental Protection Agency or any EPA-approved certifying organization. All practice questions are original and written against the exam blueprint published in federal regulation (40 CFR Part 82, Subpart F, Appendix D). Section 608 certification exams are administered only by EPA-approved certifying organizations.