Abstract: Spray-on cleaners that can be delivered by pump or pressurized gas aerosol spray head have been known to cause respiratory distress in the form of a choking mist. The choking mist associated with aerosol use can be reduced or eliminated by formulating surface cleaning compositions that can be dispensed through a spray head resulting in an aerosol or mist droplet having a median particle size greater than about 170 .mu.m, more preferably 200 .mu.m. We have found that typical spray-on cleaners have a median particle size less than about 170 .mu.m and, depending on the concentration and degree of irritation of strong base or strong acid components can cause severe respiratory distress. Preferred thickeners have been found for use in the non-choking aerosol or mist compositions.