Neemax antivirus fumigation gel form in a can, which is to kept in the area that needs to be sanitized. this can is compacted with CIO2 and it is releases chlorine dioxide in the air, slowly which eliminates all airborne bacteria and viruses. the rate of releasing chlorine is controlled and very low percentage. the user just needs to open the can lid. Neemax Gel is safe for humans. the gel effectively sanitizes the 250 sq feet area. the gel works for 30 days approx.