These dehumidifier pads are an eco-friendly, practical and economical way to keep your car interior dry. They absorb excessive moisture in the air, preventing the formation of mould, mildew, musty odours and rust. The activated pellets inside the bags absorb 130ml of moisture, so each bag should remain effective for months. To reactivate (an indicator on the bag will tell you when), simply place the dehumidifier in a sunny area for 4-6hours until it turns blue or alternatively pre-heat your oven to 70-80 degrees celsius and put the product in for 10 minutes.