Introduction To Aerosol Insecticides

Aerosol insecticides, also known as sanitary aerosol insecticides, are products that encapsulate insecticide concentrate and propellant in pressure-resistant cans, and are sprayed as a mist of insecticide through a valve. The micro-particles are called aerosols. The main active ingredients include pyrethroid pesticides such as permethrin, deltamethrin, and cypermethrin; some products contain synergistic ethers. This product was first successfully developed in China in 1982. Based on the spraying method, it is divided into aerosols and sprays, and is characterized by portability and rapid effectiveness.

Aerosol insecticide cans are flammable and explosive pressurized goods and must be protected from high temperatures and violent impacts. Some products have a risk of explosion due to excessive internal pressure. After use, harmful substances such as formaldehyde may be released; timely ventilation is necessary after spraying. National quality inspections have found that some products do not meet the standards for active ingredient content or illegally add agricultural pesticides such as deltamethrin. Product quality requires comprehensive assessment of physicochemical properties, biological effects, and safety.

The micro-particles sprayed from aerosol insecticides are called aerosols. Sprays do not use propellants but are sprayed manually using compressed air. There is also a type of spray similar to aerosols called "air-extruded sprays," which are called "air-extruded sprays" because the propellant is not ejected from the can during use; instead, the concentrate is extruded as droplets or streaks. Air-extruded sprays do not produce a mist and are non-aerosol-based, but their formulation and operating principles are similar to aerosols.