# EPA 608 HVAC Field Lab — Prep, Tools & Rule Scenarios

> Prep, Tools & Rule Scenarios (iPhone/iPad app by 福赐 林.)

- Source: https://appshunter.io/ios/app/epa-608-hvac-field-lab/id6804336622 (this page in markdown: same URL + `.md`)
- Developer: [福赐 林](https://appshunter.io/developer/6789946002)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: American English
- Released: 2026-08-25
- Data updated: 2026-08-29
- User reviews in markdown: https://appshunter.io/ios/app/epa-608-hvac-field-lab/id6804336622/reviews.md

## What is EPA 608 HVAC Field Lab?

Build Section 608 knowledge and the judgment to use it in the field.

EPA 608 HVAC Field Lab includes:

- 160 original questions across Core, Type I, Type II, and Type III
- Original explanations for every question
- Mixed 20-question readiness checks and a 14-of-20 readiness target
- Weak-area repair and bookmarks
- Superheat and subcooling calculations using saturation temperatures from your verified gauge or manufacturer reference
- Temperature, pressure, weight, and energy conversions
- A certification-path selector for common equipment categories
- Date-stamped ODS and HFC applicability scenarios linked to primary sources
- Private on-device progress and offline study after installation

The free download includes five questions in each certification section, one mixed readiness check, charge and conversion tools, the certification-path selector, and verified source links. One non-consumable purchase unlocks the complete 160-question bank, unlimited readiness checks, weak-area repair, bookmarks, and the full rule-scenario lab. There is no subscription.

This is an independent study and field-reference tool. It contains original practice material, not official exam questions, and is not affiliated with or endorsed by the U.S. Environmental Protection Agency. It does not issue certification or guarantee exam success. Refrigerant rules and manufacturer procedures can change; verify the live linked source before making a field decision.

No account, advertising, tracking, analytics SDK, or cloud profile is used.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime HVAC Field Lab | $9.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-26

No release notes.

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All apps by 福赐 林: https://appshunter.io/developer/6789946002

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*