SMOKESCAN 75 10/PK

The smoke cartridges make visual detection of air circulation problems possible. The cartridges can only be used in barns and non-domestic buildings. There are 10 smoke cartridges in a package.The smoke cartridge can be lit by using a lighter or matches. Once lit the smoke cartridge is placed on the ground or held up in a carrier. The cartridge will smoke effectively for 75 seconds emitting clean, white smoke that is ideal for tracing air flow.