A2L Certification Test Prep vs EPA 608 Study & Practice 2026

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.

Pass your EPA 608 on the first try. 578 practice questions, a full mock exam, and flashcards — aligned to EPA Section 608 regulations (40 CFR Part 82). WHAT YOU GET • 578 practice questions across Core, Type I, Type II & Type III • Full-length mock exam — 100 questions, scored by section, 70% to pass • Flashcards — quick review of refrigerant types, pressure readings, safety rules • Weak Questions — the app tracks what you keep getting wrong and resurfaces it • Daily Review — spaced repetition so you don't forget what you studied last week • Bookmarks — save any question for later • Progress dashboard — accuracy by topic, passing probability, streak counter • Exam date countdown — set your target date, get reminders at 30, 14, 7, 3, and 1 day out EVERY EPA 608 SECTION COVERED • Core — ozone depletion, Clean Air Act, Montreal Protocol, venting prohibitions, refrigerant sales restrictions, recordkeeping under 40 CFR Part 82 • Type I — small appliances, system-dependent recovery, required evacuation levels • Type II — high-pressure systems, recovery equipment, leak repair requirements for 50+ lb charges • Type III — low-pressure systems, pressurization for leak detection, water-tube vs shell-and-tube chillers HOW IT WORKS 1. Set your EPA 608 exam date during setup 2. Study by topic or take the full mock exam 3. Review wrong answers, drill weak sections, track your pass rate 4. Get a reminder before your exam — show up ready STUDY FEATURES • Practice offline — the entire question bank is on your device • No ads • No account required to start • Works on iPhone and iPad • Your progress stays on-device SUBSCRIPTION EPA 608 Practice Test 2026 is a subscription service. A weekly or yearly auto-renewing subscription unlocks the full question bank, every mock exam, full explanations, and all study features. Your subscription auto-renews at the same price unless you cancel at least 24 hours before the period ends. Manage or cancel anytime in Settings > Apple ID > Subscriptions. This app is an independent study tool. It is not affiliated with, endorsed by, or sponsored by the U.S. Environmental Protection Agency. 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 Terms of Use (Apple EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/