The Pandoo air fresheners filter unpleasant odours, bacteria, allergens & pollutants from the air we breathe without any chemicals, oils or fragrances, making them ideal for allergy sufferers. with bamboo activated carbon natural & durable product effective dehumidifier usable for 2 years & biodegradable easy to use versatile & can be used anywhere How to use: Simply place the air freshener sachet near the musty area & within a day the area will be fresh, dry, pollution & odor free. The air freshener also prevents unpleasant odors before they occur. To recharge the room freshener, place the pillow in the sun for a few hours every four weeks. In this way, the activated carbon releases the moisture & the filtered substances & is like new again.