I have been using these for approximately 2 months. My dryer broke and I have been line drying my laundry. The fresh clean smell lasts for days! I make my own "fabric refreshener". Use a spray bottle, water and a capfull of the bursts let dissolve. I use this on pillows, furniture, kids room and in my car. I also add them to my rug cleaner. And just today I diluted some and added it to the water in my steam iron. Absolutely love this product!