The heaven fresh hf 10 refrigerator air purifier is specially designed both to neutralise reproductive capability of bacteria and viruses and to reduce unpleasant odours inside your fridge silent in operation and not requiring filter changes the hf 10 kills 95 of fungi bacteria and mould from contaminated food inside your fridge thus lessening the chances of your family suffering from food poisoning its microprocessor controlled 2 hour air cleaning cycle helps to preserve fo