Free EPA 608 Type 1 Practice Test 2026

EPA 608 Practice Test — Type 1 Exam (Free)

The EPA 608 Practice Test Type 1 section tests 25 questions specifically focused on small appliances with 5 lbs or less of refrigerant charge. Practicing here ensures you master the specific recovery requirements and safety protocols for household units.

Test Results

What the EPA 608 Type I Certification Covers (EPA 608 Practice Test)

Type I certification governs small appliances — factory-sealed systems containing five pounds or less of refrigerant. These include domestic refrigerators, window air conditioners, PTAC units, vending machines, and water coolers. Because the compressor is hermetically sealed at the factory, technicians use specialized recovery techniques that differ from larger open-drive systems.

The Type I exam tests three core knowledge areas:

Recovery Standards — The required recovery percentage depends on whether the system compressor is working or non-working. EPA mandates specific efficiency thresholds before a technician may open the system.
Active vs. Passive (System-Dependent) Recovery — Active recovery uses a self-contained recovery machine. Passive (system-dependent) recovery uses the appliance's own compressor to push refrigerant into an external container. Both methods are legal for Type I, but each has different efficiency requirements.
Safety — Phosgene and Flammable Refrigerants — Decomposition of R-12 near an open flame produces phosgene, a toxic gas. Flammable refrigerants such as R-600a (isobutane) in modern domestic fridges require special handling.

Type I Recovery Requirements

Unlike Type II and III systems, Type I recovery thresholds are expressed as a percentage of the refrigerant charge, not in inches of mercury. The requirement depends on equipment manufacture date and compressor condition.

Recovery Method	Compressor Working	Compressor Non-Working
System-Dependent (Passive)	80% recovery required	90% recovery required
Self-Contained (Active)	90% recovery required	90% recovery required

                Field Tip: On PTACs (Packaged Terminal Air Conditioners) in hotels, always verify the
                compressor starts before choosing passive recovery. A non-working compressor immediately raises the
                required recovery threshold to 90%.
            

Essential Equipment for Type I Technicians

Type I technicians use different tools than larger-system technicians. The piercing valve (sometimes called a saddle valve or bullet-piercing valve) is attached directly to the sealed system tubing without soldering, allowing refrigerant access. Recovery bags and passive recovery cylinders are commonly used for small system-dependent recovery. The exam tests correct usage procedures and refrigerant transfer limits for each method.

For broader exam preparation, take the Universal 100-question practice test, practice the Type II high-pressure practice test, and review the EPA 608 cheat sheet for quick reference on recovery thresholds across all sections.

Frequently Asked Questions

What systems does Type I certification cover?

Type I covers factory-sealed appliances with five pounds or less of refrigerant — including domestic refrigerators, window AC units, PTAC units, and commercial vending machines.

What is the Type I recovery percentage for a working compressor using passive recovery?

80% of the refrigerant charge must be recovered when using system-dependent (passive) recovery with a working compressor.

Can I use a regular recovery machine on a Type I appliance?

Yes. A self-contained active recovery machine requires 90% recovery regardless of compressor condition. It is the more consistent option for technicians who work across multiple system types.

What is a piercing valve used for?

A piercing (or saddle) valve attaches to sealed system tubing without soldering, providing refrigerant access on hermetically sealed appliances. It is the standard access method for Type I recovery.

Does Type I alone allow me to purchase refrigerant?

Yes. Any Section 608 certification (Type I, II, III, or Universal) allows purchase of refrigerant in containers larger than 2 lbs from EPA-registered distributors.

Sample Type I Questions

These questions appear on the Type I section of the EPA 608 exam.

Q1. Under EPA regulations, what is the maximum refrigerant charge that defines a 'small appliance' (Type I)?

10 pounds
5 pounds ✓
15 pounds
3 pounds

Explanation: Under 40 CFR §82.152, a 'small appliance' is defined as any appliance that is fully manufactured, charged, and hermetically sealed in a factory with 5 pounds or less of refrigerant. This includes household refrigerators, freezers, room air conditioners, and packaged terminal air conditioners. Systems with more than 5 pounds fall under Type II (high-pressure) or Type III (low-pressure) categories.

Q2. Which of the following appliances is classified as a Type I (small appliance) under EPA regulations?

A 20-ton commercial rooftop AC unit
A household refrigerator with a factory-sealed hermetic system containing 3 oz of R-134a ✓
A split-system heat pump containing 6 pounds of R-410A
A large commercial freezer with a 10-pound refrigerant charge

Explanation: A household refrigerator is a classic Type I small appliance: it is factory-sealed, hermetically sealed, and contains well under 5 pounds of refrigerant (typically a few ounces). The 20-ton rooftop unit and 6-lb heat pump are Type II (high-pressure over 5 lbs), and the 10-lb commercial freezer also exceeds the 5-lb Type I threshold per 40 CFR §82.152.

Q3. A technician is about to service a small window air conditioner. What feature, by definition, qualifies it as a Type I small appliance?

It uses CFC-12, which is a Class I ozone-depleting substance
It is a portable unit weighing less than 50 pounds
It was factory-manufactured, hermetically sealed, and charged with 5 pounds or less of refrigerant ✓
It uses a rotary or scroll compressor instead of a reciprocating compressor

Explanation: The three defining characteristics of a Type I small appliance per 40 CFR §82.152 are: (1) fully manufactured in a factory, (2) hermetically sealed, and (3) charged with 5 pounds or less of refrigerant. The refrigerant type, appliance weight, and compressor design are not the defining criteria for the Type I classification.

Q4. Which list contains ONLY Type I small appliances?

Household refrigerator, window AC unit, portable dehumidifier ✓
Central air conditioner, commercial walk-in cooler, mini-split system
Centrifugal chiller, absorption chiller, screw chiller
Commercial reach-in cooler with 8 lbs of refrigerant, roof-top unit, split system

Explanation: Household refrigerators, window AC units, and portable dehumidifiers are all factory-sealed hermetic systems with 5 pounds or less of refrigerant — classic Type I small appliances per 40 CFR §82.152. Central AC, mini-splits, and commercial equipment typically contain more than 5 lbs. Centrifugal, absorption, and screw chillers are large low-pressure or high-pressure systems (Type III or II).

Q5. A technician encounters an older window AC unit that appears to have had refrigerant added after leaving the factory. The original factory charge was 2 lbs of R-22, but the unit now contains 6 lbs. How should the technician classify this unit?

Still Type I, because the original factory charge was under 5 lbs
Type II, because the current charge exceeds 5 lbs regardless of the original factory charge ✓
Type III, because R-22 is a low-pressure refrigerant classified under Type III
The classification depends on whether the compressor is functional

Explanation: While the Type I small appliance definition refers to factory charge, once a system contains more than 5 lbs of refrigerant (regardless of how it got there), the technician must apply recovery requirements appropriate to the actual system charge. EPA regulations and inspection standards focus on the actual refrigerant present, not the nameplate rating. A 6-lb system must meet Type II recovery requirements per 40 CFR §82.156(a).