Before spraying the aerosol close all doors and windows and turn off the fan. Now stand in the middle of the room and spray in evry corner of the room for atlest 3 to 4 seconds. Now go out from the room for 15 minutes. To kill other insects spray directly on them.
Cockroaches are older than human beings. They have been around since the ages of dinosaurs. They are tough creatures as is evident from the longevity of their species. Cockroaches can live without food for almost a month. Around 4000 species of cockroaches can be found on the planet. They prefer warm environment and thus can be found in and around homes. They crawl through dirty places and can contaminate food which can trigger quite a few diseases.