25S Smoke Check™
Smoke Detector Tester
The Original

HSI Aerosols

 

Tested, Approved, Preferred
Underwriters Labs approved these aerosols after subjecting them to a series of rigorous tests. This independent lab not only approved these products but  uses them to test smoke detectors units submitted for UL approval. Most major smoke detector manufacturers use these products in their manufacturing process. Our aerosols are  the preferred choice of many US government agencies, as well as other government agencies worldwide, including all U.S. Veterans Administration hospitals, U.S. Consumer Product Safety Commission, U.S. Embassies and military installations at home and abroad. This product is used by most major airlines to test the smoke detector systems in their aircraft, even Air Force One, the presidents aircraft, is tested with Smoke Detector Tester. Many private hospitals, convalescent centers, factories, warehouses, hotels/motels and multiple-family dwellings use these products.  The original product in this category and still the best, Smoke Detector Tester is the preferred choice of professionals world-wide.

DUS-97 5oz Push Button DustAir      
 
DUS-97-10T 10oz Trigger Duster

 

 

 

 

 

 

 

 

 

 

*Uses 152a, the best environmental alternative presently available for this type of product.

 

 

25S is Environmentally Friendly
Does Not promote Global Warming

    UL Card for Aerosol Smoke URRQ.S3753