Nitrogen Oxides

According to the EPA, air with a high concentration of NOx emissions irritates respiratory health. Environmentally, it can also contribute to damaging acid rain.

Sulfur Oxides

At high concentrations, SOx can react with other compounds to form particulate matter, which is hazardous to human health when breathed in.


The combustion of hydrocarbons, like those from diesel fuel, results in carbon monoxide pollution. When hydrocarbons combine with NOx emissions, they can contribute to smog pollution.

What Makes Propane Different

Versus Diesel & Electric

If you’re looking to clean up the air where your employees work, using propane forklifts is a must. They’ve been trusted for decades to reduce harmful emissions like NOx and hydrocarbons compared with diesel. When your crew can work in a cleaner environment, they’re more likely to be productive. Toxins released by diesel forklifts are proven to irritate respiratory issues like asthma, which could lead to sick employees who can’t come into work — that’s not good for your efficiency or workplace morale.

If you think electric forklifts aren’t polluting the environment, think again. When you consider the emissions created by manufacturing, transporting, and recharging batteries, electric forklifts produce 76 percent more SOx emissions than you’d get with propane.


Get Indoor-Outdoor versatility

You don’t need forklifts just for outdoor use when you use propane. It meets or exceeds nationwide indoor air quality standards, making propane forklifts safe to use indoors. They also deliver comparable power to diesel throughout a shift, so you can get through every task without switching equipment.

Some warehouses think their only option for productive, safe indoor operation is electric. But batteries start to lose their power as soon as they start working, which can leave you with less power throughout a shift. Propane is a proven clean choice that gives you 100 percent power for the duration of every cylinder.

Take a closer look at the download below to see how the clean operation of propane stacks up against other energy sources.