DIRECTIONS FOR USE:Place the charcoal bags anywhere you wish to purify the air. Once a month, refresh the bag outdoors under direct sunlight. The UV rays of the sun will recharge the odor eliminator bag and cleanse it of all the absorbed impurities. The carbon bag is best used up to 2 years.RE-CHARGE IN SUNLIGHT:Once a month, place the activated bamboo charcoal bag under the sun for one hour. The UV Rays from the sun will cleanse the carbon of all the impurities and toxins it had absorbed.EFFECTIVE UP TO 2 YEARS:The recommended effective use of the bamboo charcoal bags is up to 2 years with regular monthly maintenance.ENVIRONMENTALLY FRIENDLYAfter 2 years of effective use, open the activated bamboo charcoal bags and release its contents into the soil.The bamboo charcoal will complement your soil nicely.ELIMINATE ODORS FROM:Pet AresBathroomBasementClosetsKitchenOfficeELIMINATES:Smoke OdorsCooking OdorsPet OdorsGarbage OdorsPaint OdorsMusty OdorsFUN FACTS:Bamboo is the fastest growing plant on the planet-some grow more than 3ft high in 24 hours! Bamboo is technically a grass not a wood! Its hollow, cylindrical stems are characteristic of grass as opposed to the thick stems or trunks seen on trees.No pesticides, fertilizer, or herbicides are needed to grow bamboo: unlike most crops.