Thank you for your question. Yes, this rangehood can be recirculated with carbon filters, which can be purchased as additional accessories and must be replaced every 6 months
Thank you for this product question, on our webpage listed under Key Specification we have extra information listed under the note section for you to view: ** Optional Extra Ducting or Recirculation Kits Available** Listed just below the images are the dusting kits available to add to our order.