Designed to emit an ultra fine mist at a precise output level, this is by far, the most effective way to spray. The fine mist will completely fill a space while penetrating all crevices and cracks. With a volume range of 0.25 to 13.2 oz per minute, this unit discharges particles of 22 microns up to 100 ft in still air. Heat sensitive products will not degrade in this sprayer. In addition, it produces an electrostatic charge, which will cause materials to cling to the underside of leaves where they're most effective. This product will pay for itself many times by saving your plants and saving you money. 8.5 micron discharge model is available upon request.