Mortein Deep Reach Action mat burns for twelve hours and is effective against malaria, dengue and filaria causing mosquitoes.         Insert the mat on to the heating machine. Switch on the heater. Prallethrin is vaporized in the atmosphere. For best results, close the doors and windows for 30 minutes. It is effective for a period of 12 hours. To get best results change the mat in every two days.     KEEP IT OUT OF CHILDREN'S REACH. IT IS POISONOUS IF INGESTED. SAFETY DIRECTIONS Switch off the machine when not in use. Keep mats in the pack provided with mats. Do not leave unused mats open. Store in place, which is out of reach of children. Wash hands thoroughly after placing the mats in the machine. The mats after use should be placed in the pack and then disposed to avoid contamination.