... and crawling insects;2 Good smell,high quality perfume to clear bad air;3 Keep the high efficiency in 3 years;4 Easy ... after using,the operating staff leaves the room right now and clothes all the doors and windows.3,after 20 minutes,open the doors and ... And are made for use in different environments such as Africa, Europe, Middle East, Asia pacific & America, etc. high quality "spritex" insect ...