These tags describe the specific details of the article, including the power supply voltage (110v, 220v) of the exhaust fan, as well as its application as a ventilation fan for rooms and bathrooms. The tag ‘110v exhaust fan’ highlights the product’s power requirement and purpose. The tag ‘220v ventilation fan’ emphasizes the fan’s ventilation function. Finally, the tag ‘wall mounted fan’ specifies the installation type of the exhaust fan, which can be mounted on walls for effective ventilation.