Lifetime

Low airflow resistance effectively filters without restricting airflow|Superior filtration traps germs, bacteria, viruses and allergens better than MERV 11 media filters|Effectiveness does not diminish over time like electronic precipitators|Removes tobacco smoke from air|Removes particles down to 0.01 micron|Easy installation, Fits into existing slot of standard throwaway furnace filters|Easy maintenance, Simply replace the economical fiberglass filter pads as needed