Air Freshener and Odour Eliminator Cool Fresh Charge is a highly perfumed odour neutraliser formulated to remain in the air for many hours, eliminating bad odours. It features a high discharge valve and actuator system  which is designed to fragrance large areas quickly and effectively. Given the high level of perfume and the power of the spray it is recommended that the room to be sprayed is left unattended for a short period of time to allow the perfume to disperse and mellow. Simply spray a small amount into the air and leave to settle.