Boschwise BW25 Thermal Fogger

Where most foggers drift coarser as the tank empties, the BW25 uses a swirl-injection engine to hold its droplet size near 30 microns from the first burst to the last. That consistency is the reason to choose it: a predictable droplet means a predictable deposit, so you can calculate what a space needs and trust that it received it. The 6-litre solution tank and 1.8-litre fuel tank give a long working session before either needs attention, and output runs from a modest 5 litres an hour up to 42 for open volumes. At 8.5 kilograms empty it is the heaviest machine we stock, which is the trade for that engine. At 19 kilowatts with a 6 litre solution tank, this is a machine for volume: warehouses, godowns, large open interiors and outdoor mosquito work. It is more fogger than a domestic job needs, and the running cost reflects that, so it earns its place on sites where the alternative is several passes with a smaller unit.

• Swirl-injection engine holds droplet size steady as the tank empties
• 19.0 kW maximum output
• 6 litre solution tank for long sessions
• Output adjustable from 5 to 42 litres per hour
• Consistent 30 micron droplet for a predictable deposit

• Best where a repeatable dose matters, such as food premises and audited sites
• Check the fuel and solution levels together, since the tanks empty at different rates
• Run the engine dry of solution before storing