And the last part of the benefits of a home air purifier is that they are environmentally safe. Most, if not all air filters that are sold in the market today are made out of biodegradable materials. At the same time, the purifiers themselves make use of minimal energy but still attain maximum results. Plus, these air purifiers have a guarantee that they will last for at least five to ten years; some brands or models are advertised to last even more. Studies have shown that these devices leave very little carbon footprint which is why it has been awarded the Energy Star Seal of Approval.