Mosquito Fogger Cleaning and Maintenance Tips

Mosquito foggers are one of the best available defenses available to the general public when it comes to battling against disease-spreading mosquitoes. There are many types of foggers, but one trait amongst them all is universal, they work. For the optimal operating efficiency of your mosquito fogger, it is essential to properly clean and maintain your unit to keep it running smoothly.

How do you clean a mosquito fogger? Cleaning a mosquito fogger involves model-specific instructions that encourage cleaning of tanks and reservoirs with high-pressure water to remove harmful debris and clogs that can disrupt the performance of the unit.

Over time, mosquito foggers can become clogged with chemical residue or evaporative build-up that can clog the internal components of the fogger. It isn’t just time and use that can cause a clogged fogger, so it is also important to always preheat your fogger to keep the chemical from clogging the motor. Adhering to a proper cleaning schedule will keep your unit like brand new.

Proper cleaning of all internal and external parts of a fogger is essential to keep the unit operating at the manufactured quality and to reduce exposure to lingering chemicals. National Pesticide Information Center.

What Steps Should You Take to Clean A Mosquito Fogger?

There are many different varieties of mosquito foggers, but the cleaning process is evenly spread across nearly all of the units. You should first follow the unit manual’s directions in taking apart your fogger correctly to ensure that you do not cause malfunctions. The chemical reservoir is the main component of the fogger that needs to be regularly cleaned and you can do this by using high-pressure water to strip any chemical residue from the tank.

Next, you will want to clean all hoses and nozzles that can become clogged with chemical residue over time. The heating element of a fogger heats the chemical into a fog, which in turn can cause build-up of chemical residue after each use. Since this residue can cling to the components of the fogger, there is no better solution than utilizing the force of high-pressure water to release the build-up from virtually every part of the fogger.

Sometimes, it is easy to get carried away in our daily routines and forget to clean our equipment and cleaning a mosquito fogger is likely not high on your list of priorities. It is important to remember to clean your fogger to avoid clogging, which can be addressed with a few easy steps. To unplug the spray tip of your fogger, you can use a pipe cleaner to ensure that you are able to clean every part of the spray tip, or, alternatively, you could use a toothpick or even a q-tip to thoroughly remove clogs and grime.

No matter what route you take to clean the internal components of your fogger, it is absolutely necessary that regular cleaning is undertaken. Never forget to let your fogger completely cool before you attempt to clean to avoid any burns. If you have a motor-based fogger, you will need to take additional steps to clean the motor at appropriate intervals.

Related Questions:

What Can Cause My Mosquito Fogger to Clog?

As with any device that heats a liquid and transforms it into another component, the residue can build up over time due to this process. A common mistake that many people make when fogging is that they do not allow the fogger to preheat properly before they start fogging. This can cause the chemical to clump and create blockages due to an abundance of chemicals not turning into fog due to inadequate heating.

Additionally, clogging can occur from not cleaning the unit as often as is necessary. Even water can create a residue build-up when turned into fog, so this will naturally be more abundant with insecticides. A good rule of thumb to follow is to remember to take the few extra minutes to clean your fogger after use and dry the parts off. Always remember to allow the fogger to completely cool before you attempt to disassemble it.

How Do You Clean a ULV Fogger?

ULV foggers are a bit different in their design than traditional, handheld foggers. There are many models of ULV foggers that are not portable, so the cleaning process can be a bit more strict, especially since most ULV foggers are also electric. It is also important to remember with ULV foggers that you need to also make sure you turn off all the adjustment knobs before powering off the unit since they are prone to leaks.

Always unplug the ULV fogger from its electrical source when cleaning and the first area you should clean should be the tank and the liquid pump with its applicable filters. Cleaning the filters is a bit like cleaning the filter of an air-conditioning unit, simply wash the filters and allow them to dry and always clean the tank with soap and water after each use, which is crucially important with ULV foggers. When it comes to ULV foggers, you want to always make sure that the unit is completely dry of all liquid after each use as these types of foggers can leak even more so than traditional foggers.

Alternatively, you can also utilize water or kerosene to clean your ULV fogger and this is advisable since many of the insecticides used can create a residue that water and soap alone may not address. If you choose to go this route, allow the fogger to cool and rinse the remaining solution out with water. Next, fill the tank with either water or kerosene and run the ULV fogger for roughly five minutes as this will completely break up any stubborn residue and leave the tank completely free from leftover solution.

If I Put My ULV Fogger in Storage, Do I Need to Use it Periodically to Ensure it Works?

Much like a car that sits idle for a long period of time, it is generally a good idea to use your fogger if it has been in storage for six months or longer. The internal components of the fogger can become corroded due to inactivity and even if it is not mosquito season, you should still run the fogger for a few minutes to keep the internal components operating efficiently. Always consult your model’s user manual to ensure that you are meeting all of the requirements for long-term inactivity.

Do I Need to Use Any Special Mosquito Fogger Cleaning Solutions?

It is not necessary to use any special kind of solution to clean your mosquito fogger, although there are some brands that may require special solutions after periods of prolonged inactivity of the fogger. Generally speaking, water and soap will usually take care of the issue, with pipe cleaners or toothpicks for reaching into tubes and nozzles. It is just as important to remember to dry your mosquito fogger after cleaning to prevent further residue from forming inside of the tank and internal components.

In Summary

Cleaning a mosquito fogger is a simple process that takes very little time. It is essential to maintain your mosquito fogger since the unit operates by a heating mechanism turning a chemical into fog, which can cause residue build-up and potentially clogging of it. It is essentially the same for all brands, although ULV foggers require a few additional steps to ensure they remain in proper operating efficiency.

In most cases, soap and water along with some pipe cleaners or even toothpicks are all you will need to properly clean your mosquito fogger. Always consult your model’s user manual to ensure you are meeting all the required steps. A clean and properly maintained fogger will ensure the longevity of this useful pest control tool.


Total release foggers. (2019). National Pesticide Information Center. Retrieved from:

Leave a Comment