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AC coil cleaners are essential for maintaining your air conditioning unit’s efficiency and longevity.
Dirty and clogged AC coils decrease the system’s performance and consume more energy, leading to higher bills.
The right AC coil cleaner helps restore your unit’s functionality by removing tough dirt, grease, and grime.
AC coils have two different types: evaporator and condenser coils.
Evaporator coils, located indoors, are responsible for absorbing heat, while condenser coils, found outside, release the heat absorbed by the refrigerant.
The buildup of dust and debris on these coils significantly impacts the efficiency of the cooling process, making an AC coil cleaner a valuable investment.
When selecting an AC coil cleaner, it’s essential to consider factors such as the size of your unit, the type of coil, and if the cleaner is compatible with your air conditioning system.
It is also crucial to look for non-toxic, environmentally friendly options, as harsh chemical cleaners may cause damage to your coils or the environment.
In addition, examining the coil cleaner’s application method—whether it’s a spray, foam, or liquid—will ensure smoother and more effective cleaning.
Keep your home refreshingly cool and energy-efficient with the best AC coil cleaner to suit your needs.
We’ve tested various products and will guide you through the top choices that provide a thorough cleaning while protecting your air conditioning system and the environment.
Best AC Coil Cleaners
Are you looking for the perfect AC coil cleaner to keep your air conditioner running smoothly?
You’re in the right place! Below is our comprehensive list of the best AC coil cleaners available on Amazon.
Frost King ACF19 Foam Coil Cleaner

Achieve a cleaner and more efficient AC unit with Frost King ACF19 Foam Coil Cleaner – a user-friendly solution for maintaining your AC coils.
Pros
- Effectively dissolves stains, grease, and dirt
- Suitable for various coils and reusable air filters
- Neutralizes odors and leaves a pleasant lemon scent
Cons
- Might require multiple applications for heavy deposits
- Sprayer tip might clog up
- Not recommended for spraying on electrical wires
Frost King ACF19 Foam Coil Cleaner is a heavy-duty foam detergent designed to clean and maintain most coils, such as window air conditioners, central HVAC units, auto radiators, condenser and evaporator coils, metal filters, fan blades, and more.
Its water-based formula ensures it will not harm drain pans, plastic, or other materials in and around your AC coils.
The product is easy to use and provides excellent results. Its powerful detergent quickly and effectively liquefies dirt, grease, oil, and other residue.
The foam clings to surfaces and is self-rinsing on condensate-producing coils. Spray it on, and let the condensation wash away the loosened grime.
You can wipe clean or rinse with water for non-condensate coils if desired.
A bonus of Frost King ACF19 is the pleasant citrus fragrance that leaves the area clean and deodorized.
This cleaner is fortified with corrosion inhibitors to prevent metal degradation and contains no CFCs, chlorinated or fluorinated solvents.
In conclusion, Frost King ACF19 Foam Coil Cleaner is a reliable and effective solution for maintaining AC coils and increasing efficiency.
Its user-friendly application and pleasant scent make it an excellent choice for keeping your AC unit in top condition.
ComStar Coil Safe

This versatile coil cleaner efficiently removes buildup while being gentle on your AC system.
Pros
- Eco-friendly, self-rinsing formula
- Safe for use on aluminum and copper
- Prevents metal fatigue with inhibitors
Cons
- Strong scent that may require mask
- Requires foaming device for best results
- Can be pricey when diluting for multiple units
The ComStar Coil Safe is an excellent choice for maintaining AC and refrigeration system coils, thanks to its neutral pH and non-toxic formula.
This self-rinsing cleaner works effectively on indoor and outdoor coils, removing dirt, dust, and grease without excess water.
Dilute it according to your cleaning needs to achieve a customized solution.
As it brightens and cleans all metal parts, the ComStar Coil Safe also contains inhibitors that protect against metal fatigue, ensuring your system continues to operate efficiently.
With a traditional green color, this coil cleaner is efficient and environmentally friendly, making it a responsible choice for home or commercial use.
However, some may find this product’s scent quite strong and overpowering, especially when used indoors. Wearing a mask is recommended to minimize any discomfort.
Additionally, for optimal results, it’s advised that you purchase a specialized foaming device compatible with the cleaner.
While this product may be a great choice, its cost may increase if you require multiple uses or have a large AC system to maintain.
In conclusion, the ComStar Coil Safe is a reliable and efficient coil cleaner that can help improve your AC system’s performance while protecting the environment.
Please take note of its strong scent and the need for a foaming device before making your purchase.
Still, it’s a worthy investment in maintaining your system’s longevity and efficiency.
Refrigeration Technologies Viper Evap+ Coil Cleaner & Deodorizer

The Viper Evap+ Coil Cleaner & Deodorizer is a reliable and efficient choice for keeping your AC coils clean and odor-free.
Pros
- Non-rinsing formula
- Enzymes destroy odor-causing bacteria
- Non-toxic
Cons
- May produce a chemical smell after cleaning
- Instructions need clarification
- Price is higher on Amazon compared to other sources
The Viper Evap+ Coil Cleaner & Deodorizer from Refrigeration Technologies is an innovative product that utilizes enzymes in a high-performing detergent base to remove soils and eliminate odors from your AC coils effectively.
The non-rinsing formula saves you time and effort, as it works with condensate production for up to 72 hours after applying.
One aspect to consider before purchasing the Viper Evap+ Coil Cleaner is that some users report a chemical smell after cleaning, requiring a waiting period before using the AC again.
Additionally, the instructions may need more specificity, such as mentioning the necessity of rinsing the coil before turning the AC back on to avoid damaging the motor.
It’s worth noting that the Viper Evap+ Coil Cleaner is priced higher on Amazon; searching for alternative retailers may lead you to better deals.
However, with its efficient cleaning and deodorizing properties, this product is a solid option to maintain your AC coils and improve the overall air quality in your home.
Leak Saver HVAC Guys – Foam Blaster

The Leak Saver HVAC Guys – Foam Blaster is an excellent choice for maintaining your AC and refrigeration units, keeping them clean and efficient.
Pros
- HVAC professional formula
- Powerful active expanding foam action
- Suitable for all cooling equipment
Cons
- Rinsing required for condensers
- Might need more than one application for heavily soiled units
- Some users report difficulties with rinsing off product
The Leak Saver HVAC Guys – Foam Blaster is designed with a powerful active expanding foam formula created by HVAC professionals.
This ensures it effectively cleans your evaporators (no-rinse) and condensers, keeping your AC and refrigeration units in top condition.
The high-pressure penetrating spray goes deep into the coils, removing debris and dirt while leaving a neutral citrus scent.
This coil cleaner is also designed for a wide range of cooling equipment, making it a versatile solution for your HVAC maintenance needs.
The Foam Blaster can handle everything from automotive radiators to metal filters and fan blades. Moreover, its neutral citrus scent leaves your units smelling fresh and clean.
However, there are a few things to remember when using this product. You’ll need to rinse condensers with water after using the Foam Blaster.
Sometimes, you might need more than one application to clean heavily soiled units thoroughly.
Some users have also reported difficulties rinsing the product off, but most see outstanding results with proper use.
Overall, the Leak Saver HVAC Guys – Foam Blaster is a great option if you’re looking for an effective, professional-grade AC coil cleaner.
Its powerful foam action not only cleans but also helps maintain the efficiency of your units, giving you the best experience possible.
Nu-Calgon Evap Foam No Rinse Coil Cleaner

Nu-Calgon’s Evap Foam No Rinse Coil Cleaner is your go-to choice for maintaining clean and efficient AC coils, as it effectively removes dirt, grease, and residues.
Pros
- Liquefies dirt, grease, oil, and other residues promptly
- Fortified with corrosion inhibitors for safe use on metals
- Fast-breaking foam is self-rinsing and has a pleasant lemon scent
Cons
- May require multiple applications for heavily soiled units
- Not recommended for use outside the scope of AC coil cleaning
- Lemon scent might be strong for some users
The Nu-Calgon Evap Foam No Rinse Coil Cleaner is incredibly easy to use – spray it onto the AC coils and let its fast-breaking foam do its magic.
Without rinsing, the foam washes the emulsified matter away, making cleaning quick and hassle-free.
One of the standout features of this product is the inclusion of corrosion inhibitors.
These ensure the safety of metals and other materials within your AC unit, allowing you to use the cleaner confidently. Moreover, the foam has a pleasant lemon scent, which helps deodorize the area.
If your AC unit is significantly dirty, you may need to apply the Nu-Calgon Evap Foam more than once, so plan accordingly.
This product has many benefits but might only suit some cleaning situations. Make sure to use it within its intended purpose – AC coil cleaning.
The lemon scent, although pleasant, might be strong for some, so consider your preferences before using it.
In conclusion, if you’re looking for an efficient and convenient way to clean your AC coils, the Nu-Calgon Evap Foam No Rinse Coil Cleaner is an excellent option.
Its unique features, ease of use, and pleasant scent make it worthy of consideration.
CRC Foaming Coil Cleaner

Choose CRC Foaming Coil Cleaner for effective cleaning and maintenance of your air conditioning and refrigeration coils.
Pros
- Heavy-duty foaming cleaner
- Suitable for various applications
- Water-based, low odor formula
Cons
- Some users report less foaming than expected
- Can be difficult to access coils
- Strong smell for indoor use
CRC Foaming Coil Cleaner is a versatile and powerful solution for maintaining air conditioning and refrigeration coils.
This heavy-duty cleaner easily removes grease, oil, and sludge, ensuring the efficient functioning of your systems.
When the fins and coils are clean, air circulates more freely, and air conditioning systems cool more effectively.
Using CRC Foaming Coil Cleaner is simple, thanks to its water-based, low-odor formula. Ideal for various applications, this cleaner works well on fan blades, blower wheels, and air conditioning and refrigeration condensers.
The water-based formula also means that in most cases, rinsing is not required after application, saving you time and effort.
However, some users have reported less foaming than expected while using this product, which may affect the cleaning process.
Additionally, accessing and cleaning your coils might be challenging, especially for inexperienced users.
While the cleaner is designed for a low odor, some users have found the smell strong when used indoors, so that it might be better suited for outdoor use.
In conclusion, the CRC Foaming Coil Cleaner is a solid choice if you’re looking for a potent and effective cleaner for air conditioning and refrigeration coils.
Remember the caveats mentioned, and you’ll be on your way to a well-maintained and efficient cooling system.
Simple Green Foaming Coil Cleaner

Simple Green Foaming Coil Cleaner is a great option for effortless removal of dirt, grease, and grime from your AC coils.
Pros
- Professional-strength formula
- Non-corrosive and non-flammable
- Self-rinsing on condensate-producing coils
Cons
- May not foam up as much as claimed
- Takes a while for delivery
- Cleaning may require a hose and brush
Simple Green Foaming Coil Cleaner makes cleaning your AC coils easy with its professional-strength formula penetrating and removing dirt, grease, and grime from the coils.
The product is non-corrosive and non-flammable, ensuring a safe cleaning experience and its self-rinsing feature on condensate-producing coils allows for quick and simple application.
On the other hand, some users have reported that the cleaner does not foam up as much as advertised, which may lead to additional manual cleaning with a hose and brush.
Additionally, the delivery time for this product could take longer than expected, so be prepared for that possibility when ordering.
In conclusion, Simple Green Foaming Coil Cleaner is a good choice for those seeking an effective AC coil cleaning solution.
Its pros – the professional-strength formula, non-corrosive and non-flammable characteristics, and self-rinsing capability – outweigh the cons of relatively less foaming and longer delivery time.
Essential Values Coil Cleaner

This non-acidic, heavy-duty Essential Values Coil Cleaner efficiently removes stubborn buildup, making it a valuable asset to your AC maintenance routine.
Pros
- Cost-effective for all types of air conditioning units
- Easy to apply and fast-acting
- Made in the USA and trusted by thousands
Cons
- May have a strong smell
- For outdoor use only
- Some users compared it to other cheaper products
This Essential Values Coil Cleaner is designed to work on both commercial and residential AC evaporator and condenser coils.
The non-foaming heavy-duty formula cuts through grease and grime better than other brands, penetrating and lifting off debris, dirt, and corrosive deposits that reduce the lifespan of your AC unit.
The application process is simple and efficient, requiring no dilution and a garden sprayer or trigger sprayer to apply the product.
After spraying, soak, and rinse away the buildup with ease. The quick results help ensure your AC unit works effectively and stays energy-efficient.
However, be mindful of the strong smell that some users have reported and use it outdoors.
Although the product may be compared to other cheaper alternatives, the quality and effectiveness of Essential Values Coil Cleaner will keep your AC unit clean and functioning optimally.
NU-Calgon Evap Foam No Rinse Evaporator Coil Cleaner & Frost King Foam Coil Cleaner

This combo of NU-Calgon 4171-75 Evap Foam No Rinse Evaporator Coil Cleaner and Frost King ACF19 Foam Coil Cleaner improves your AC system’s efficiency and saves money.
Pros
- Liquefies dirt, grease, oil, and residues quickly and easily
- Safe for use on metals due to corrosion inhibitors
- Fast-breaking, self-rinsing foam
Cons
- Initial foaming can be inconsistent
- May require multiple applications for stubborn deposits
- Scent might not be appealing to everyone
Choose this combo to maintain the cleanliness and efficiency of your AC coils, as it effectively removes dirt, grease and residues while being safe for various materials.
Both cleaners have unique capabilities, with the Nu-Calgon providing a lemon-scented cleaning experience and the Frost King focusing on neutralizing odors and removing heavy-duty stains.
The NU-Calgon evaporator coil cleaner has a specially formulated foam that breaks up easily and is self-rinsing once applied, which means it’s easy to use – spray it onto the coils.
The condensation produced during cooling will wash away the emulsified grime.
On the other hand, the Frost King coil cleaner is formulated to dissolve stains, grease, and oil and neutralize odors resulting from standing water in drain pans.
However, remember that you may experience some inconsistencies with the foam application when using the Nu-Calgon product, but it should not affect the overall cleaning performance.
Additionally, the formula may require a few applications on stubborn or heavy deposits.
While the pleasant lemon scent is appreciated by many, those sensitive to fragrances may not find it appealing.
In conclusion, this NU-Calgon and Frost King evaporator coil cleaner combo is an excellent investment to maintain your AC units’ efficiency and prolong lifespan.
Enjoy a cleaner, fresher-smelling space, and give your AC system the care it deserves.
3X Foaming Coil Cleaner – 18 oz.

Find the right balance between clean performance and ease of use with the 3X Foaming Coil Cleaner.
Pros
- No-rinse, no-wipe formula
- Removes organic odors and leaves no harsh fumes
- Powerful jet spray for deep cleaning
Cons
- Lacks high-pressure or tank sprayer compatibility
- May not be suitable for heavy-duty cleaning tasks
- 18 oz. size could be limiting for larger jobs
This 3X Foaming Coil Cleaner is designed for those looking for a simple yet effective solution to maintaining AC coils.
The no-rinse, no-wipe formula lets you clean dirt, lint, grease, and matted material from RV condenser coils and fins.
The powerful jet spray generates a thick foam that penetrates deep to break down soil, while the foaming action ensures that dirt and lint are washed away with condensation, leaving your unit cleaned and deodorized.
This eliminates the need for high-pressure or bulky tank sprayers, making it an easy-to-use option for those wanting to keep their AC coils looking and performing their best.
As you maintain your AC system, you’ll truly appreciate the convenience and effectiveness of the 3X Foaming Coil Cleaner.
With its pleasant, organic odor and lack of harsh fumes, this product is a win-win for AC coil cleaning and maintenance tasks.
Say goodbye to complicated cleaning procedures and hello to the refreshing ease of the 3X Foaming Coil Cleaner.
Things to Consider When Buying AC Coil Cleaner
When searching for the best AC coil cleaner, several factors must be considered.
By focusing on these key features, you can ensure that you choose the right product for your needs.
Effectiveness: The most important aspect of an AC coil cleaner is its ability to remove dirt, grime, and bacteria from your coils. Look for a cleaner with a strong and efficient formula to ensure optimal results.
Safety: Choosing an AC coil cleaner that poses no risks to your health and won’t damage your equipment is essential. Look for non-toxic, non-flammable, and non-corrosive products to ensure the safety and longevity of your AC system.
Ease of Use: You’ll want a cleaner that’s easy to apply and doesn’t require complicated steps or tools. Look for a cleaner that comes in a simple-to-use form, such as a spray or foam. This will make your job more manageable and save you time.
Environmentally Friendly: Consider choosing an eco-friendly AC coil cleaner that doesn’t contribute to environmental harm. Products with biodegradable formulas are an excellent choice, as they won’t leave harmful residues in the environment.
Choosing the Right AC Coil Cleaner for Your Needs
To determine which AC coil cleaner is best for your needs, consider the following factors:
- Type of AC Coil: Determine whether you have an indoor (evaporator) or outdoor (condenser) coil, as some cleaners may be specifically designed for one or the other. Double-check the product description to ensure it suits your AC coil type.
- Frequency of Cleaning: If you need to clean your coils frequently, opt for a mild but effective cleaner. This will help you maintain your AC system’s performance without causing damage from harsh chemicals or repeated cleanings.
- Budget: There are AC coil cleaners available at various price points. While it’s essential not to sacrifice quality for a lower price, it’s also important to stay within your budget. Compare different products to find the best balance between cost and effectiveness.
Always follow the instructions on the AC coil cleaner’s packaging and adhere to safety guidelines.
Considering these factors during your search, you’ll be well on your way to selecting the perfect AC coil cleaner.
Frequently Asked Questions
How do foaming coil cleaners compare to other types?
Foaming coil cleaners are popular due to their ease of use and effectiveness. They quickly break down dirt, grime, and mold, making it easier to rinse or vacuum away debris. Non-foaming cleaners also work well, but they might require more scrubbing and rinsing to achieve the same results.
Which coil cleaner brands work best for home use?
For home use, consider brands like Simple Green, CLR Pro, and Nu-Calgon. These coil cleaners are often more affordable and easy to use, making them ideal for homeowners who want to maintain their AC system regularly.
Are professional coil cleaning services worth it?
Professional coil cleaning services can be worth it for those who prefer expert assistance or have particularly challenging cleaning needs. Professionals have access to specialized equipment and products, which can help ensure your AC system operates as efficiently as possible. However, in many cases, using a store-bought cleaner and following the manufacturer’s instructions can provide similar results at a lower cost.
Do store-bought coil cleaners such as from Home Depot or Walmart work well?
Store-bought coil cleaners can be effective at removing dirt and debris from your AC coils. Just make sure to read labels carefully and follow the product’s directions for the best results. Comparing customer reviews can also help you select a reliable cleaner for your needs.
How often should I clean my AC coils to maintain efficiency?
Cleaning frequency varies based on factors like your location and AC system usage. However, a good rule of thumb is to clean your AC coils at least once per year, typically as part of your spring or summer maintenance routine. Regular cleaning can help maintain efficiency, prolong your system’s lifespan, and reduce energy costs.