Disinfecting has become essential to our everyday lives during the COVID-19 pandemic season. One of the control measures that has been discussed is fogging. Fogging uses a fogging machine to spray disinfectants into a room by releasing a fog or a mist. So, what exactly is fogging, and what are the safety precautions for using foggers?


When using a fogger, adequate ventilation is necessary because the chemicals can stay suspended in the air for longer if insufficient air movement exists. A disinfectant fogger removes contaminants and germs on a surface after thoroughly cleaning. It provides a feasible solution to disinfecting high horizontal areas, confined spaces, and the hard-to-reach regions often missed during cleaning.

Ideally, fogging is viewed as an extra measure after a thorough cleaning and disinfection practice. It is a top-level disinfection measure and should not be considered a substitute for other cleaning and disinfection practices. Also, fogging is not ideal for disinfecting closed areas like electrical control panels and has minimal impact on downward-facing horizontal surfaces.

Vertical surfaces only receive little contact with the disinfectant fog due to the weight of the solution, which causes a downward fall. However, many trials by electrostatic fogging manufacturers have been conducted to charge the disinfectant droplets and prevent them from falling electrically.

Benefits of fogging

  • It is safe if carried out by a professional in the proper manner.
  • It helps reduce air-borne contaminants.
  • Helps to disinfect hard-to-reach areas.
  • It is very effective in disinfecting horizontal surfaces.

Limitations of fogging

  • Fogging has little impact on vertical surfaces due to gravity, which causes the disinfectant to drop or fall.
  • It is not effective in disinfecting the underside of horizontal areas.
  • It is not a substitute for cleaning and disinfecting practices.
  • It doesn’t work in closed areas.
  • Fog can damage electrical components.

Precaution measures for fogging

Foggers and other machines, such as vaporizers and electrostatic sprayers, aerosolize chemical disinfectants and suspend them in the air. That can irritate the airways, nose, and eyes or cause other health issues if you breathe the air in. CDC restricts the use of foggers for disinfecting community spaces and should be used with extreme caution.

Foggers should be used under the following conditions:

  • Only a trained professional should use a fogger.
  • Only the approved disinfectants should be used.
  • Fogging should be implemented depending on the manufacturer’s instructions for use, safety, and contact time.
  • The professional should wear appropriate PPE and practice other safety measures to ensure their safety, the safety of the people who use the room afterward, and the safety of others nearby.
  • Fogging should take place in an unoccupied room.
  • It should be carried out more cautiously around food-prepping areas or where children play.
  • The person should leave the room after application for the time indicated on the manufacturer’s label.
  • The area should be well-ventilated.
  • The chemical residue on surfaces should be wiped before the others enter the room after the contact time is achieved.
  • People with asthma and children are more vulnerable to certain disinfecting chemicals.


Anyone using fogging disinfectants should understand the safety precautions and risks before protecting themselves and others.

Sandy Ryan
Writer. Music advocate. Devoted bacon trailblazer. Hardcore web fanatic. Travel junkie. Avid creator. Thinker. Skateboarder, coffee addict, record lover, reclaimed wood collector and RGD member. Producing at the junction of minimalism and mathematics to craft delightful brand experiences. I'm a designer and this is my work.