The 8 Best Ac Coil Cleaners of 2023 Reviews & Buying Guide

Air Conditioners are modern development equipment. When global warming is increasing all over the world, air conditioners are getting mandatory.

Many wealthy, as well as, emerging countries are getting air conditioners as the temperature is becoming unbearable.

When you buy an AC, you’ll be amazed by the cold air. With the passage of time, the air will get less cold. Don’t misunderstand it by machine error. It’s the dirt particles of the air that causes such changes.

Lundmark Coil-Cleen, Air Conditioning Fin & Coil-Cleaner

Like other electronics, air conditioners also need maintenance with extra care. There’re many parts and equipment of an air conditioner, but the coils are mainly responsible for cooling air. So, know the best AC coil cleaner for your coils.

Let me tell you that the cleaner will drastically change the air cooling level after every wash!

Top Picks: 4 Best Ac Coil Cleaner

Top 8 Best Ac Coil Cleaners Reviews & Buying Guide

Lundmark Air Conditioning Fin & Coil-Cleaner5Check Price
ComStar Coil Safe Neutral-pH Evaporator4.8Check Price
CRC Foaming ac Coil Cleaner4.5Check Price
Nu-Calgon-4291-08 Nu-Brite5Check Price
Nu-Coil Coil Cleaner4.7Check Price
Nu-Calgon Evap Foam No-Rinse Evaporator Coil Cleaner4Check Price
Nu-Calgon Evap Pow’r No-Rinse Coil Cleaner4.4Check Price
Rectorseal 1-Gallon Foam ac Coil Cleaner4.9Check Price

1. Lundmark Coil-Cleen, Air Conditioning Fin & Coil-Cleaner

Buyers prefer Lundmark Coil Cleen for its immediate reaction and visible satisfying result. The coils & fins get out of grime particles so neatly that you’ll eventually amaze. The product has surprised the buyers from time to time and become the preferable one.

The company says that the landscaping is free from any damage. Besides the comfortable using technique, people have loved the budget as well.

A clean air conditioner can save 40 percent of your electric bill per month. Everyone should grab the opportunity and reduce the monthly bill.

The way to use the cleaner is correctly shown on the label. Make sure to read the procedure before action.


  • Enhance cooling power
  • Reduce energy cost
  • Increase efficiency
  • Landscape remains harmless
  • Mild organic-acid
  • Manufacturer: Lundmark Wax
  • Rating: 4.5 / 5

2. ComStar 90- 298-Coil Safe-Professional Grade Neutral-pH Evaporator

You can simply take this cleaner as an efficiency enhancer. Coil safe is an industrial level product with a unique feature. Generally, no rinsing cleaner comes in a foaming texture. But coil safe has turned something else.

The material is a non-foaming cleaner along with no rinsing formulae that eventually helps the coil to restore its original condition. At the same time, Coil Safe is pretty much suitable for aluminum & copper exterior.

The no-rinsing technique especially keeps you tension-free about new residual & extra water bodies.

The high concentration of the cleaner reaches the deep layer of the dirt, oil, dust mite, grease & grime resulting in them to wipe away. Such clean finishing takes only a couple of minutes for the cleaner. In the end, you’ll be able to visualize an instant result.

As the concentration of the sprayer is too high, you need to dilute the liquid with 3-10 parts of clean water. Coil Safe comes in different container sizes. Choose the one that suits your job.

The stuff isn’t ready-to-use and allows you to dilute it. So, this is such a great product that costs less and lasts long. This product is a premium one with a neutral pH and suits well in indoor uses.


  • Strong cleaning agent
  • Rinsing free
  • Non-foaming formulae
  • Non-acid
  • Non-alkaline
  • Neutral pH
  • Manufacturer: ComStar International Inc.
  • Rating: 4.5 / 5

3. CRC Foaming Coil Cleaner

CRC Foaming Coil Cleaner is much like a detergent that comes in an aerosol container. The cleaner’s aggressiveness is enough to cut all the dirt, oil, debris, and other residues along with grease.

The most satisfying point about this foaming coil cleaner is that the users don’t even need to rinse. Simply an application is enough to deal with the odors.

It’s a couple of minutes for this a/c coil cleaner to fade away all the dirt particles even without brushing.

Nevertheless, to say, the chemicals in the cleaner will eventually defect the ozone resulting in our breathing problem. Luckily, this air conditioner coil cleaner is free from those ozone defectors, and you have the freedom to breathe clean air.

The reasonable price of the product is another notable point to mark. Such a chemical-free home-safe cleaner at a reasonable price isn’t easy to find. Hence, you’re free to use the filter on the metal-blades and the coils, blower wheels, and freeze condensers.

Any position is suitable for spraying the cleaner, even upside-down. Neither there any flashpoint nor any firing point.


  • For coils of evaporator & condenser
  • Alkaline
  • No flashpoint
  • No fire point
  • Low-odor formulae
  • Zero chlorinated solvents
  • No ozone-depleting harsh chemicals
  • 360⁰ valve
  • Manufacturer: CRC Industries
  • Rating: 4 / 5

4. Nu-Calgon-4291-08 Nu-Brite

Nu-Calgon-4291 -08 Nu-Brite is one of the best condenser coil cleaners. The cleaner is foamy in reaction while alkaline in nature. The frothy texture targets the dirt and grime portion of the coil and cuts them all away.

The mixing proportion should be 4:1 that will lead the bottle to end up with a couple of washing processes. In a word, the cleaner is money saving.

A plastic sprayer is necessary for the cleaner, and a thorough rinse off is a must after the application. The product works like magic due to its strength. But at the same time, this air conditioner coil cleaner is corrosive. So, in the long run, you need to be cautious.

You cannot use the cleaner for too long, or else, corrosion might take place. As the product is versatile, feel free to use it on the radiators for cleaning. When it comes to the price tag, it’s a genuine bargain.

The company warns about the potent chemical compound in the product known to the State-of-California. So, be sure to take safety precautions before using it.


  • Alkaline nature
  • Foamy texture
  • Non-acid
  • Brightening with cleaning
  • Biodegradable
  • Not for indoor-use
  • Not for evaporator-coils
  • Manufacturer: Nu-Calgon Inc
  • Rating: 4.7 / 5

5. Nu-Coil Coil Cleaner

Nu-coil is effectively capable of wiping out all the grime, grease sludge, & other residue.

While cleaning the indoor setting, removal of the fins becomes a significant problem indeed. Luckily this cleaner has a foaming system that automatically spread out between the fins. The foam pushes out all the dirt.

The ac-safe air conditioner foaming coil cleaner is strong enough. So, make a diluted mixture of 3-10 parts of water before application.


  • Alkaline
  • High foaming
  • High concentration
  • Manufacturer: Quality Chemical
  • Rating: 3.9 / 5

6. Nu-Calgon 4171-75 Evap Foam No-Rinse Evaporator Coil Cleaner

Nu-Calgon 4171-75 Evap Foam No-Rinse Evaporator Coil Cleaner is suitable for heavy-duty performance. The cleaner works as a foamy detergent that reacts immediately with the dirt particles and the toughest grime.

The application and the user process is straightforward than you’ve ever thought. The cleaner is non-hazardous at the same time.

There’s no need for rinsing off as the foam immediately evaporates after the accomplishment of the job. The company claims this feature as enough for perfect cleaning though some professionals feel ease in rinsing the coils off.

There’s a lemon scent in the cleaner that will suit your AC unit perfectly. Such scented air allows you to welcome your guest freshly & peacefully. Now, coming to the price tag, it’s quite affordable.

You’re free to spray the cleaner from an upside-down position or right-side-up post. The cleanser is suitable for almost all coils but notably for evaporator coil or cooling coil.


  • Liquefy the oil, dirt, tough grease, and other residual particles
  • Non-corrosive
  • Safe for metals with other materials
  • Self-rinsing formulae
  • NSF registered
  • Manufacturer: Broan
  • Rating: 4.5 / 5

7. Nu-Calgon 4168-08 Evap Pow’r No-Rinse Coil Cleaner

Nu-Calgon 4168-08 Evap Pow’r No-Rinse Coil Cleaner is decent money worth cleaner that buyers don’t like to swap with the other. Not even for a try.

The cleaner is very efficient in omitting all the grease, dirt, or whatever it’s like nothing ever existed.

Your hands are free from those tiresome work as rinsing off isn’t needed.

So overall, if you like this cleaning product for cleaning your ac coil, you can go for it.


  • Omit out all the robust particle
  • No-rinse off
  • Manufacturer: APR Supply Co.
  • Rating: 4.3 / 5

8. #11 Rectorseal 82632 1-Gallon Foam ac Coil Cleaner

Rectorseal’s non-fuming coil cleaner is well-known for its sparkling cleanliness in the AC unit. Starting from ordinary to tight residual, like tar will get dissolved, in a couple of minutes after the cleaner’s application. The stuff keeps metal like- copper as well as aluminum out of damages.

The cleaner eventually washes away every choking air particle resulting in heat reduction. As a result, the air cooling level increases.

The cleaner needs the dilution process due to high concentration. But the water mixing proportion isn’t constant and varies with the different dirt level.

For filthy AC coils:

For any harsh or filthy fans, a blend of 3-4 parts of water is necessary.

For regular uses:

For daily maintenance, make a dilute mixture of the cleaner with 6-10 parts of water.

Rectorseal makes a foaming formula reacting with grime, grease, and dirt to eliminate them from the AC coils. When it comes to cleaning the mechanical equipment, the cleaner has a crucial point of versatility. Feel free to use the cleaner on condenser coils, evaporators, filters, & other air handlers.


  • Foaming formulae
  • Versatile
  • High concentration
  • Suits aluminum & copper
  • Alkaline
  • Non-acid
  • Non-flammable
  • Manufacturer: The Rectorseal Corporation
  • Rating: 3.8 / 5

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Guideline for Your Explicit Consideration:

Purpose of The Coil:

Air conditioner coils are of two types- evaporator coil & condenser coil. The evaporator coil holds the primary responsibility of cooling air, whereas, condenser holds the secondary position of cooling.

There’s a misunderstanding of people that the air conditioner does nothing for cooling air. The story occurs on the opposite, i.e., AC removes the heat from the flowing air.

Well, the fact is the evaporator do the work of extracting heat from the air and release it outside the building. Then a refrigerant cools the heatless air. The fan on top does the job of blowing hot air over condenser coils, and as a result, the coolant would lose some of the heat.

The optimal condition of these two coils is mandatory for your air conditioner to work correctly.

Operation Between The AC Unit & Dirty Coil:

Some people think, let it be. Does it matter if I use a dirty coil? Yes, it does. The first and foremost disadvantage you’ll undoubtedly face is the reduction of the air’s coolness as the AC will not fully extract hot air. So, make sure to have contaminant-free AC coils.

In the long run, the dirt will be a substantial barrier to air and a drainage problem. But you have a plus point of easy recovery of such damages. So, don’t perform the mistake of operating uncleaned coils with your air conditioner system.

What Makes an AC Coil Cleaner Good?

The most common question among the buyers is what it takes for a cleaner to be the beast of dirt. Let get some critical points that you must notice or ask the sellers during purchasing.


Typically washing component comes in acid-base nature. Although acid works excellent as a cleaning agent, the grime can be even stubborn & in the process, acid might damage the material of the coil.

Many will advise using only water, but an alkaline cleaner can also do the work of cleaning excellently.


The product needs to be easy-to-use and effortless. Many cleaners come in an aerosol container or may have an extra sprayer. Those are comfortable to use while spraying, and you don’t even need to rush for buying a sprayer.

USDA Authorized:

Any product having USDA certification is safe to use as it means that they’re safe near food. The certification also means that the cleaner doesn’t have any harmful particles causing the breathing problem.


The cleaners that are specially made for AC are expensive comparing to the general filter. Luckily, a little amount is enough for the long run. All the cleaners in this article are budget cleaners and effective in works as well.


Instead of buying cleaners for specific parts, look for versatile ones. Both of them work the same. Besides, it will be worth it to buy a versatile one for washing any parts.

Zero Harmful Additives:

Though the chlorinated solvents speed up the process of cleaning, it’s not suitable for your health as well as for the environment. It’s a bit hard to look for a completely green cleaner. So, you should buy something ozone-friendly.

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The Steps of Using The Coil Cleaners:

As I said above, it’s something that needs too much care. So, let’s start the process according to the safety guidelines of the manufacturer.

At first, ensure that you’ve switched off the circuit breaker, and no power is flowing. Take the coil cleaner of your choice; just ensure that it’s a quality product and a self-rinsing one.

  1. For cleaning the indoor-service unit, the front panel needs to be opened over that position where it stops.
  2. Separate the air filters.
  3. Now slide the right-rotary-shaft to the left side & release it. Again do the same thing with the left-rotary-shaft to its opposite side and release it.
  4. Then, unfasten the center shaft along with the right and left shaft for removing the blade.
  5. Take out your grille by removing the screws & hooks.
  6. All is ready; it’s spraying time. Shake the coil cleaner well before removing the cap.
  7. Spray on the dirty surfaces.
  8. Give some time to soak and perform foaming on the dirt.
  9. After the foam has emulsified the harsh grime particles, rinse it off.
  10. The technique to clean the outdoor unit is quite the same as the indoor one. First, unmount the outdoor unit setting & then spray the cleaner on the dirt residual of the evaporator coil.

The rest of the process is the same as before- let it soak & rinse it off. I think that I have made the cleaning process pretty much clear. Even after that, if you’re quite unsure regarding how to do then, don’t panic.

There’re several tutorial videos on YouTube. You can go through any one of them, and you’ll be pretty clear about the process. Trust me; it’s not that critical.


When it comes to buying the best ac coil cleaner, buyers get mesmerizing with many questions and different answers to them. So, we took the responsibility to enlighten you with exact information.

Can I do The Job on My Own?

Yes, you can. Cleaning the AC coils is something like cleaning the household, but it requires too much care. Like- you cannot bend the coil fins, or you’ll break them. Again, you can’t turn or rotate any tubes around. You can’t even move them a little.

There’s no need to say that you always have to shut off the air conditioner first, or you’ll endanger electrocution.

However, if the process seems to be confusing to you or you’re afraid to damage any part, then contract with the HVAC contractor. You’re lucky if your maintenance contractor has this service.

What is an AC Coil Cleaner?

In the process of providing you the clean, fresh air, the AC itself becomes dirty. So, you need a coil cleaner that works like a detergent to clean the coil’s toughest grime.

Is Commercial Coil Cleaner Safe for The AC?

Yes, they are. In a simple word, coil cleaners are just cleaning agents that will eventually help you get clean air. But you need to be sure about buying a good one that has a safe-using certification.

Is it ok to Use a Degreaser to Clean The AC Coils?

Yes, indeed, it’s. Degreaser is mild & non-corrosive. So, it will work as a great alternative to the coil cleaner.

Is it Ok to Use Vinegar to Clean The AC Coils?

Of course, it’s. Many people use vinegar to wash the coils. But you need to mix the vinegar with water to create a dilute situation in the proportion of half & half ratio. Vinegar is indeed a very effective cleaner, and it won’t cause any damage to your AC coils.

Can I Pressure-Wash The Coil?

Generally, it’s good to avoid pressure-wash. Though the process is active, it might bend, break, or flatten the coil fins quickly & ultimately degrade the coil’s performance level.

How Long Can it Take to Wash The Coils?

It depends on many issues though it may take approximately 2 hours at maximum for washing a unit.

What is The Cleaning Process in My Attic?

At first, turn off the main switch of the air handler. Now, from the coil accessing panel, remove your reflective tape. Then remove the mounted screws of the air handler. Then, the evaporator coil will become noticeable.

Check thoroughly for any dirt or residual particle and spray the coil cleaner on those grime. Placing a drain pan underneath the air handler, let the cleaning agent soak on coil surfaces.

After complete dripping from the evaporator coil, check the unit one for time if there’s a need for a second application.

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Final Words:

Operating any of your electrical instruments without maintenance for a long time is a dangerous step. Such activity can cause your appliance to slow down. It can even get damaged to a great extent that you may need to make a replacement or costly repair of the entire machine.

On the other hand, washing the coils once in a while isn’t that difficult. Moreover, the best ac coil cleaner makes the process easier. The guideline and review will let you know what you need.

Let Me Pick The Three Best Cleaners.

Best Pickup

Nu-Calgon-4291-08 Nu-Brite is an overall best pickup. The filter has the best rating and recommendation of all time. Not only that, but such an amazingly effective cleaner also comes at a low price. The users loved the affordable price of the filter.

Most Budget-Friendly

Next to Brite, Nu-Calgon 4171-75 Evap Foam No-Rinse Evaporator Coil Cleaner is the one with a high rating of 4.5 at the most reasonable price. The price has not made the stuff worthless. No other stuff would give you such fantastic performance in this small price tag.

Close to Green Product

CRC Foaming Coil Cleaner is the one that is much safe and close to the green product. The cleaner doesn’t contain any chemicals that could damage the ozone. And it also comes at a reasonable price

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