Quality Roof & Wall Caps

Explore the many options in exhaust and ventilation fans at F.W. Webb. These fan types help improve air quality inside a home or building. A roof cap keeps outside air and pests from entering the home; a wall cap maximizes the air and sound performance of an exhaust or ventilation fan. Use our convenient filters to sort fans by air volume, speed, wattage, amperage, material, and other variables. Browse top-quality ventilation and exhaust fans from trusted makers Panasonic, Soler & Palau, Broan, and Fantech to find the best fit for your residential or commercial space.

Frequently Asked Questions

What is the difference between an exhaust fan and a ventilation fan?

The difference between an exhaust fan and a ventilation fan is that a ventilation fan brings fresh outside inside and helps circulate it; an exhaust fan removes contaminants and pollutants from the indoor air, including dust, moisture, and smoke.

How big of an exhaust fan do I need for a bathroom?

The size exhaust fan you need for a bathroom is based on the Cubic Feet Per Minute (CPM) rating:

  • A small bathroom 50 square feet or less: Under 79 CFM fan
  • Medium bathroom: 80 to 99 CFM fan
  • Large bathroom 100 to 150 square feet: Over 100 CFM fan