Most 16-inch wall fans use a mix of metal and plastic components: metal or steel-alloy bodies and grills, polypropylene or aluminum-alloy blades, galvanized steel housings, and some plastic trim or parts. Exact material combinations vary by model.
The majority of 16-inch wall fans are corded electric models. Listed cord lengths in product details commonly include 1 ft, 5 ft, and 6 ft. A few items note battery requirements only for remote controls or accessories, not for primary operation.
Certifications vary by model: some 16-inch wall fans list ETL or UL certification, while others show no certifications in their product details.