Using this Westinghouse rangehood filter is easy. Just remove the old filter from your WRH605I or WRH608I rangehood and insert this new one in its place. Make sure it fits snugly. When it comes to cleaning, you can use warm soapy water to gently wash the filter. Rinse it thoroughly and let it dry completely before putting it back. If you're not sure whether this filter fits your rangehood, always check your model and PNC numbers with us first. Keep in mind that not all WRH600 series models use this filter. With proper care, this 4 - layer aluminium filter will serve you well for a long time.