A2L Certification Test Prep vs EPA 608 Practice Test & Prep

Getting your A2L certification? Practice with exam-style questions on R-454B and R-32 safety, then keep the field tools you'll use once you're carrying the card. Many distributors and manufacturers now ask for an A2L / Low GWP refrigerant safety card before they'll sell you equipment. This app is the study half and the gauge half in one download — free, offline, no account. PRACTICE MODE • 300+ original questions across 11 topics: A2L characteristics and ASHRAE 34 classes, flammability metrics and GWP, codes and regulations, A2L tools, handling and transport, leak detection and mitigation, recovery and evacuation, servicing and charging, installation and charge limits, emergency procedures, retrofit and transition • Quick 10, single-topic drills, and a 50-question mock exam with an optional 35-minute timer • Every answer comes with an explanation. Math questions are solved by the same engine as the calculators, so the numbers are correct by construction • Score by topic, review every miss, and track your accuracy over time — all stored on your phone • Above / below 70% shown for orientation; your test provider's passing score governs WHO IT'S FOR Technicians sitting a Low GWP / A2L safety exam (closed-book and open-book formats cover the same material), HVACR program students, and contractors whose distributor now asks for the card. FIELD TOOLS YOU KEEP AFTER THE EXAM • Superheat and subcooling for R-454B, R-32, and R-410A — dew point for superheat and bubble point for subcooling on R-454B, applied automatically • Enter your OEM nameplate target and see how your reading compares • Max Allowable Charge — nameplate check against the room's passive limit with a clear Within / Exceeds result, margin, and m1 / m2 / m3 charge tier; optional active-mitigation limit • A2L quick reference — refrigerant comparison, bubble/dew explainer, safety rules • Job history and one-page PDF job tickets with your company branding and an optional GPS stamp BUILT FOR THE FIELD No account, no login, no signal required. Everything works in a basement or a mechanical room with zero bars. Dark mode. Your job data and practice progress stay on your phone. FREE Every feature is included. A small banner keeps it free, and Practice mode offers optional rewarded video ads you can choose to watch to unlock extra mock exams — never required. No subscriptions, no paywalls. SOURCES PT data: NIST REFPROP 10.0 via National Refrigerants (R-454B), Daikin / Hudson Technologies (R-32), National Refrigerants Reference Guide (R-410A). Max charge formula structure: UL 60335-2-40 / ASHRAE 15.2. Independent study tool. Not affiliated with, endorsed by, or approved by ESCO Institute, Mainstream Engineering, the U.S. EPA, or any certifying body. All practice questions are original material. Calculators assist licensed technicians; every result carries a disclaimer, and the OEM data plate and local code govern.

Prepare for your EPA 608 certification with 608 practice questions, answer explanations and a 100-question mock exam. Find the topics you need to review before test day. Built for HVAC/R apprentices, trade-school students and technicians studying for the U.S. EPA Section 608 exam. The app interface and study content are in English. PRACTICE ALL FOUR SECTIONS • Core: refrigerant fundamentals, ozone depletion, recovery and safety. • Type I: small appliances and refrigerant recovery. • Type II: high-pressure equipment and servicing concepts. • Type III: low-pressure systems and chillers. Study the sections individually or prepare across all four for Universal certification. TURN MISTAKES INTO YOUR NEXT STUDY SESSION • Work through 608 multiple-choice questions with explanations and EPA regulation citations. • Take a timed, 100-question mock exam and review results by section. • Use 207 flashcards to review key terms and concepts. • Read 21 topic study guides with 42 visual diagrams and illustrations. • Check 50 free quick-reference cheat sheet tables for evacuation levels, leak rates and compliance dates. • Revisit missed questions and bookmark items for later. • Keep up with daily review and track accuracy by topic. • Set your exam date and use reminders to keep studying. STUDY WHEREVER YOU ARE The question bank is stored on your device for offline practice. Fit a quiz or flashcard session into a break, your commute or time between classes. Available on iPhone and iPad. Choose a section, complete a practice session, then review your mistakes. Start preparing for your next exam today. SUBSCRIPTION Some content and features require a paid subscription. Available plans and prices are shown in the app before purchase. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel in your App Store account settings. Independent exam preparation tool. Not affiliated with, endorsed by or sponsored by the U.S. Environmental Protection Agency. Practice results do not award certification or guarantee an exam pass. Support: https://app.notion.com/p/Support-EPA-608-Study-Practice-2026-3961e95b550680728672f83e1cc897b5 Privacy Policy: https://app.notion.com/p/Privacy-Policy-EPA-608-Study-Practice-2026-3961e95b55068086b56cd6d557a4527c?pvs=28 Terms of Use (Apple EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/