Study smarter for the EPA Section 608 Technician Certification — and walk into the test knowing the material cold.
CoolForge covers all four areas of the EPA 608 exam: Core, Type I, Type II, and Type III. Every question comes with a plain-English explanation, so you learn the reasoning instead of memorizing answers. And everything works offline — study in the truck, in the shop, or anywhere with no signal.
WHAT YOU GET
• 142 exam-style questions across Core, Type I, Type II and Type III
• An explanation on every question — right or wrong, you learn why
• Study mode: work through flashcards at your own pace
• Practice mode: instant feedback the moment you answer
• Mock exams: 25 questions, 30 minutes, 70% to pass — just like the real thing
• Progress tracking: mastery by section, plus your best exam scores
• Quick Reference: a built-in cheat sheet for the field
• 100% offline — no signal required, ever
• No account, no sign-up, no data collection
BUILT AROUND THE FOUR EPA 608 AREAS
Core — ozone depletion, the Clean Air Act, refrigerant handling, recovery vs. recycling vs. reclaiming, safety, and shipping. Every Core question is free.
Type I — small appliances with 5 pounds of charge or less: recovery requirements, passive and active recovery, piercing valves.
Type II — high-pressure equipment such as R-22 and R-410A: recovery levels, deep evacuation, leak detection, superheat and subcooling, non-condensables.
Type III — low-pressure chillers such as R-11 and R-123: purge units, rupture discs, recovery to 25 mm Hg absolute, and leak-test limits.
QUICK REFERENCE CHEAT SHEET
Stop digging through a binder. CoolForge includes fast tables for refrigerant pressure classes, Type I/II/III recovery requirements, cylinder fill and storage rules, Clean Air Act sections, and the numbers worth memorizing — all offline.
TRACK WHAT YOU ACTUALLY KNOW
A question counts as mastered once you answer it correctly twice. The Progress dashboard shows mastery by section and your best mock exam score, so you know exactly where your study time should go.
FREE AND PRO
The entire Core section is free, along with the first questions of every Type section and the Core mock exam. The one-time Pro unlock opens every question, every mock exam, and removes ads. One purchase — no subscription, ever.
WHO IT'S FOR
HVAC and refrigeration techs going for certification, apprentices studying for Universal, and anyone who needs to renew their knowledge on refrigerant recovery, recycling, and reclaiming.
ABOUT TAPFORGE STUDIOS
CoolForge is built by TapForge Studios, an independent studio making no-nonsense tools for the trades. More at tapforgeapps.com
IMPORTANT
CoolForge is an independent study aid. It is not affiliated with or endorsed by the U.S. Environmental Protection Agency. Passing the in-app exams does not grant certification — certification requires passing a proctored exam through an EPA-approved certifying organization. Refrigerant regulations change; always verify current EPA requirements against official sources.
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