9902.15.54 - Exhaust fans for permanent ceiling installation designed to be used in the bathroom, each containing an electric motor with an output wattage not exceeding 125 W, with or without a light, with volume flow between 1.35 m3 and 2.04 m3 per minute and having a sound level greater than 2.2 sones but not exceeding 6.8 sones (provided for in subheading 8414.51.30)

This HTS classification, 9902.15.54, specifically addresses exhaust fans intended for permanent installation in bathrooms. The criteria for inclusion are precise: these fans must be powered by an electric motor with an output wattage not exceeding 125 watts. They may optionally include a light fixture. Furthermore, their performance is defined by a volume flow rate between 1.35 and 2.04 cubic meters per minute, and a sound level falling within the range of greater than 2.2 sones but not exceeding 6.8 sones.

Given that this classification resides within Chapter 99, it pertains to temporary legislation or special provisions rather than standard commodity classifications found in earlier chapters. Therefore, its distinction from sibling categories would primarily be within the context of these temporary trade measures. Unlike broad categories of general exhaust fans that might be found elsewhere in the HTS, this provision carves out a specific niche for bathroom exhaust fans meeting a detailed set of technical and performance specifications under a temporary or special tariff treatment.

As this is a leaf node within the HTS database, there are no further subcategories. Classification under 9902.15.54 is definitive for products meeting all the stipulated technical parameters for bathroom exhaust fans. Any deviation from these specific wattage, volume flow, or sound level requirements, or if the fan is not intended for permanent bathroom ceiling installation, would necessitate classification under a different HTS code, likely within the machinery and appliance chapters (such as Chapter 84).