American patented formula, professional air purification, strong removal of all kinds of unpleasant odors ? Strong formaldehyde removal ? Effectively absorb and decompose harmful gases in the air, including formaldehyde ? Add natural fragrance to the space ? Each product can cover a space of 37 square meters ? When not in use, the cover can be closed and tightened to prolong the service life of the product Multi-Purpose Odor Neutralizer Eliminator Air Freshener Easy to Use Long-lasting Odor Eliminator Non-Toxic Non-flammable Natural Safe for Family Pets Children Instructions for use : 400 grams per product, each product can cover 400 square feet (37 square meters) of space Each can be used for 3-9 months (depending on the degree of environmental pollution), and the product volume decreases with use The leftovers can be discarded directly, do not pollute the environment, and are safe for humans and animals Cap can be screwed on when not in use to prolong product Warning : Directions Remove the cap and place on the affected area. For bad smells, move the Bad Air Sponge to the lid. For greater efficiency, move product in the airflow towards problem areas. Product coverage is approximately 14 ounces per 2. per 400 square meters. feet area. Traces of the aroma will disappear as the product continues to neutralize the odor. Keep away from children and pets. Keep containers away from open flames. Product may freeze at 32?F and thaw at 125?F while continuing to work with product. Product will last at least 45 days. For product details, please refer to the instructions on the packaging.