Clears outdoor areas of mosquitoes, flies, black flies, gnats and moths for hours - day or night. Fog drifts easily through dense foliage to kill flying insects for complete, effective coverage, then disperses quickly, leaving no active residue. Easy trigger action with lockable one-hand on/off control prevents accidental discharge. No matches required - self-igniting starter switch provides positive, cleaner ignition and makes it convenient to take anywhere. Attaches to standard propane canister (sold separately). Indoor/Outdoor Use: Outdoor, Compatible With: Propane and fog concentrate, Battery Required: No, Includes: Fogger, Common Usage: Fogger, Assembly Required: No