What is UL 60335-2-142?

UL 60335-2-142 is a technical standard that pertains to the safety requirements for humidifiers. It is part of the UL 60335 series of standards, which are developed and published by Underwriters Laboratories (UL). UL is a global independent safety science company that certifies, validates, tests, inspects, and audits various products and systems. This particular standard focuses on the safety aspects related to household and similar electrical appliances, specifically humidifiers.

Scope and Objectives

The scope of UL 60335-2-142 covers electrically operated household and similar appliances designed to add moisture to the air. Its primary objective is to ensure these appliances are safe to use and do not pose any hazards to individuals or property. The standard specifies various requirements related to construction, materials, markings, instructions, testing, and performance of humidifiers. Compliance with UL 60335-2-142 helps manufacturers and consumers ensure the quality and safety of humidifiers in the market.

Key Requirements and Testing

UL 60335-2-142 outlines specific requirements that humidifiers must meet to comply with the standard. These requirements include insulation, protection against electrical shocks, mechanical strength, temperature resistance, energy efficiency, and protection against thermal risks. The standard also addresses potential risks associated with water supply, such as preventing leakage, ensuring proper water flow control, and avoiding contamination. Additionally, it covers safety features like automatic shut-off mechanisms and overheat protection. To verify compliance, manufacturers can submit their products for testing and evaluation by UL or other recognized testing laboratories.

Benefits and Compliance

Compliance with UL 60335-2-142 provides several benefits to both manufacturers and consumers. For manufacturers, it demonstrates their commitment to producing safe and reliable products. It also helps them gain market acceptance and meet legal and regulatory requirements in various regions. Consumers, on the other hand, can have confidence in the safety and performance of humidifiers bearing the UL mark. UL-certified products undergo rigorous testing and evaluation, ensuring they meet stringent safety standards. This reassurance helps consumers make informed decisions when purchasing humidifiers for their homes or businesses.