• Do not use it to car airconditioner and outdoor unit. • Provide good ventilation and start airconditioner. • Because this is a flammable product using high pressure gas, you must comply with followings. 1. Do not spray it toward flame. 2. Do not use near stove or heater. 3. Do not use it in the room using fire. 4. Keep it in the place below 40℃. 5. Provide ventilationa after using in the closed room. 6. Remove the remained gas to dispose it. 7. Do not keep it in the closed place. 8. Spraying may not work below 5℃.