Small appliance
Short answer · Updated 2026
Under EPA Section 608 a small appliance is any appliance fully manufactured, charged and hermetically sealed in a factory with 5 pounds or less of refrigerant: household refrigerators and freezers, room and window air conditioners, dehumidifiers, under-counter ice makers, vending machines and water coolers (40 CFR 82.152). Servicing them requires Type I or Universal certification.
Small appliance recovery requirements
| Recovery equipment | Compressor working | Compressor not working |
|---|---|---|
| Made before the late-1993 cutoff | Recover 80 percent | Recover 80 percent |
| Made on or after the cutoff | Recover 90 percent | Recover 80 percent |
| Any equipment, alternative | Evacuate to 4 inches of mercury vacuum | Evacuate to 4 inches of mercury vacuum |
A small appliance is a product that was manufactured, charged, and hermetically sealed at a factory and that contains 5 pounds or less of refrigerant. Household refrigerators and freezers, window air conditioners, and dehumidifiers are the familiar examples. Every element of the definition matters: the sealing must have happened at the factory, and the charge must be at or under the limit. Equipment assembled and charged in the field falls outside the category regardless of its charge size.
The category exists because sealed, small, mass produced systems justify their own rules. They are serviced and scrapped in enormous numbers, often by people who never touch larger equipment, and their construction does not offer the service fittings larger systems carry. Section 608 responds with a dedicated certification, Type I, and with recovery requirements tailored to what capture from a small sealed system can realistically achieve, including the 80 and 90 percent standards and the four inches of mercury evacuation alternative.
On the exam, the small appliance definition is a reliable source of questions, usually built around near miss descriptions: a field charged system under the weight limit, or a factory sealed unit described without its charge size. Candidates who test every scenario against both prongs of the definition, factory sealed and 5 pounds or less, take these questions without hesitation.
Common questions
Is a window air conditioner a small appliance?
Yes. Room air conditioners, including window units, portable air conditioners and packaged terminal air heat pumps, are named in the definition, provided they were factory sealed with 5 pounds or less of refrigerant. Servicing one requires Type I or Universal certification.
Is a split system with 4 pounds of refrigerant a small appliance?
No. The definition requires the appliance to be fully manufactured, charged and hermetically sealed in a factory. A system assembled and charged in the field is not a small appliance, however small its charge, and it falls under Type II.
Who needs Type I certification?
Anyone who maintains, services or repairs small appliances (40 CFR 82.161). People who only dispose of small appliances do not need certification, but whoever takes final custody must make sure the refrigerant was recovered first.
Sources
- 40 CFR 82.152, definition of small appliance.
- 40 CFR 82.156, small appliance recovery requirements.
- 40 CFR 82.161, Type I certification.
Related terms
| Self-contained recovery equipment | Recovery equipment with its own means of moving refrigerant, requiring no help from the appliance being serviced. |
| Recovery | Removing refrigerant from an appliance and storing it in an external container, without necessarily processing it. |
| Full charge | The quantity of refrigerant an appliance contains when properly charged, and the denominator of every leak rate calculation. |
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