Optimal air filtration For homes and businesses: The 5000 series is our most popular line of air purifiers, with the most available options and the best value for maximum air cleaning. Choose from this series for the ideal indoor air Quality solution for most homes and businesses. Featuring up to 27 pounds of activated carbon for effective chemical, gas and odor adsorption, plus a hepa filtration system to remove particles that trigger allergies and asthma. These air cleaners provide the perfect protection for average-size rooms (max 1, 500 square feet), and come in a wide array of colors to match any décor. 50 lbs.