The Facts

Studies and research prove why diesel exhaust protection must be a priority.

For 2007, 2010 & Newer Vehicles. An apparatus-mounted, direct source protection system that features a high-performance substrate with a propriety wash coat that removes harmful gases from diesel exhaust.

For 2006 & Earlier Model Engines. An apparatus-mounted, direct source filtration system that works automatically to protect you from the dangers of breathing diesel exhaust.
Models the NO SMOKE 2 System, but is specially designed to meet the needs of Gasoline Engines that emit higher levels of harmful gases.


The need for diesel exhaust protection is vital for the health and safety of the men and women in your Departments. It is no secret that cancer is now the leading cause of Firefighter deaths. Ward Filter Systems is committed to protecting firefighters from the harmful effects of diesel exhaust.


Ward Diesel Filter Systems,

protecting firefighters is our priority.

Ward Diesel Filter Systems has been manufacturing and installing exhaust filtration solutions in the fire industry for more than 30 years. There are thousands of fire apparatus across the US and overseas that have been outfitted with the Ward Diesel NO SMOKE and NO SMOKE 2 Filter Systems. Scott H. Beecher, President/Owner, explains why his focus goes beyond providing a product and service to the fire industry.

Frequently asked questions

Frequently asked questions and Customer Feedback.
View FAQs

No Smoke

Offers the most effective and user-friendly exhaust protection systems on the market