Using innovative piston based technology, you can expect absolute ease of use and virtually no waste. Because there are no dangerous chemical propellants involved, each bottle is filled with 100% pure DetraPel®. In other conventional aerosol products, these dangerous chemicals are part of the propulsion, mixed in with the product, and make it flammable. With DetraPel®, there are no contaminants and chemicals for propulsion, just our innovative air distribution system. When we give you 5 ounces of product, we mean 5 ounces, no unnecessary mix-ins. In addition, our packaging is specifically designed to easily distribute 98% of the product, no need to shake and angle the bottle for that last drop. We guarantee you will get the full use out of every bit of DetraPel®