Benefits and Results If you want whole home air cleaning that couldn't be easier the 4000 series with active control is the clear choice. These high performance air cleaners with user friendly allergen and irritant control right at your fingertips provide superior cleaning benefits and proven results. Removes 97% of pollen, airborne dust and other large particles Permanently traps indoor allergens that can lead to respiratory problems Visibility and control allows you to monitor and control the air cleaner function through the home from a single, central location Simple maintenance just replace the filtering media once per year

All at a touch of a button - Aprilaire conducted research with homeowners just like you and discovered that when it came to air cleaners, active control and confidence were paramount. We developed the only visible whole-home Air Cleaner Control on the market.* Mounted in your living space or on the installed air cleaner, you'll feel confident in knowing that your air cleaner is working to keep every room in your home clean and comfortable. While other air cleaners are simply "on" or "off," Aprilaire gives you unpredicted control. Is it allergy season? Are you having a party? Does someone in your family suffer from asthma? These are all factors that impact when and how often you might want the air in your home cleaned. That's why the Model 4000 Series Air Cleaner Control offers four different cleaning modes to put you in charge.