JOEAONZ Bathroom Fan 110 CFM Very Quiet with Matel Housing, Ceiling Mount Exhaust Ventilation Fan Large Air-flow Capacity, Energy-Saving Household Bath Vent Fan, White Plastic Grille - BPT13B

• 【Power Fan & Low Noise】Quiet, energy efficient bathroom exhaust fan come with 110 CFM large airflow capacity to help control air quality is powerful enough for enclosed room (including bathroom) up to 107 sq. ft. Duct Diameter 4 inch. 【Integrated Exhaust Fan, Easy to Install】The bathroom fan installation process is simple enough that you can complete the installation only by the installation steps and pictures above the manual. If you replace the old Bathroom fan with the existing pipeline, the installation process can be completed without the need for additional materials. 【Detachable 4 Inch Polymeric Duct】Our household exhaust fan for bathroom ceiling equipped with 4 inch detachable polymeric duct connector, which is the most common size of ventilation duct. In most cases, you can directly use the old exhaust pipe. 【Multiple Use Scenarios】13B-110 bathroom vent fan is applicable to the bathroom, bedroom, cloakroom and other enclosed spaces that need to reduce moisture and smelliness. Maintaining ventilation and dryness can effectively ensure the cleanliness and absence of odors in enclosed spaces. 【Housing Size】Housing size of household ventilation fan BPT13B series are 7 1/2 x 7 1/4 inch, an appropriate opening size. This is the most commonly used household size.