The Innokin CoolFire IV – What makes it a classic?

The Innokin CoolFire IV – What makes it a classic?

The Innokin CoolFire IV has proven itself to be a staple mod in the industry throughout the years, catapulting the CoolFire line of vaporizers to the spotlight. A bestseller since early in its inception, it offers everything you need to get a quality vaping experience in a relatively compact, affordable, yet advanced package.

The CoolFire IV is equipped with a standard 510 threaded connector, fitting almost any atomizer you can imagine on the market. With an operating wattage range of 6 to 40W, and firing coils as low as .2ohm, it’s a great choice for those primarily looking for MTL (mouth-to-lung) style vaping, with an option to get your feet wet in the world of sub-ohm vaping too. Typically, the CoolFire IV is commonly paired with one of our popular line of MTL/sub-ohm styled tanks, the iSub or iSub-G. Both are fully compatible with our iSub line of coils, offering lots of varied vaping experiences from full MTL style coils to DTL (direct-to-lung) dense sub-ohm coils.

Made with simplicity, style, and your safety in mind, the CoolFire IV comes fully equipped with built-in protections and convenient features, such as:

-Over-Discharge Protection
-Short Circuit Protection
-15 Second Puff Safety Cut-Off
-Low Voltage Warning
-”Vape While Charging” Technology
-Puff Counter
-Manual On/Off Switch
-Variable Voltage/Wattage modes

The CoolFire IV comes standard with an attractive brushed metal finish as well as the  tactile “CoolFire IV” badge. With 8 different color options to choose from, there’s bound to be a color that’s right for you!

Finally, the CoolFire IV is backed by our limited 90 day manufacturer warranty and industry leading customer support. It’s no wonder the CoolFire IV is a time-tested classic!

Need help with a question or troubleshooting an issue with your CoolFire IV? Look no further! Here is a list of potential fixes you may need in case you run into a problem.

Q: My CoolFire IV is not turning on or responding to any button presses.
A: Ensure that the physical on/off switch located on the bottom of the device is switched to “On”, then click the main firing button 3 times rapidly. If the switch is set to on and the device is still not responding, plug the CFIV into a quality wall 5V/1A wall charger, as the battery may require a higher level of charge.

Q: My CoolFire IV screen shows “Shorted” or “Check Atomizer”.
A: Replace the coil in the tank you are using with your CoolFire IV. Make sure the coil ohm is higher than .2ohms, and that the 510 threaded connector of both your CoolFire IV and tank are clean and undamaged.

Q: Should I use Variable Voltage or Variable Wattage modes?
A: Variable Voltage used to be a common sight in the vaping world. Nowadays, this mode has generally been replaced entirely by Variable Wattage, which gives you a more specific level of control to the power delivered to your tank. If you’re not already used to Variable Voltage, we fully recommend using Variable Wattage instead.

Q: What wattage should I use with my tank/coil?
A: Please refer to manufacturer recommendations of the coil you are using with your CoolFire IV. If you are using an Innokin tank, we laser etch recommended wattage ranges on our coils and also provide said ranges on coil packaging.

For the full CoolFire IV user manual, click this link:

For any other issues you may have, you can always contact us by emailing our support team at for more assistance. 

Vaping is 95% Less Harmful than smoking

Vaping is 95% Less Harmful than smoking

Is vaping safer than smoking? How do we know? Are some vaporizers and eliquids less harmful than others? In this blog we answer these questions and give you 10 Tips to Vape in the least harmful way possible.

When we started Innokin in 2011 our mission was to help smokers and their families. Now in 2020 we have both clear scientific evidence and the support of governments that vaping electronic cigarettes is less harmful than smoking.

Why does the Royal College of Physicians in the U.K. state that Vaping is 95% safer than smoking?

Public Health England has stated that e-cigarettes are ‘95% safer’ than conventional cigarettes, given the reduction in carcinogen load.i PHE has continued to recommend to the British government and people that e-cigarettes are a less harmful method of nicotine delivery there is evidence that they are an effective smoking cessation tool.ii

Why are electronic cigarettes less harmful? They operate totally differently from a conventional tobacco cigarette. When a cigarette is lit the burning tobacco leaf releases smoke that contains tar and thousands of toxic chemicals. Electronic cigarettes, when operated properly, do not burn and tests have shown that they release a far fewer number of chemicals and in lower amounts.

In 2015 we wanted to find out for ourselves how much less harmful electronic cigarettes are than smoking. Innokin worked with the independent American lab Enthalpy Analytical to run analytical testing on our Endura T18 kit. We requested that the lab study T18s under normal operating condition and analyze the amount of specific toxins (aldehydes: formaldehyde, acetaldehyde, and acrolein) and a list of metals that are present in the vapor.

The results of the testing clearly showed that, when operated properly, the amount of aldehydes and metals were far less than the amount found in cigarette smoke and also well below the exposure limits for these chemicals outlined by the Occupational Safety and Health Administration.

Kurt Kistler, a chemistry professor at Penn State and co-author of the study: “E-cigarettes include a huge variety of devices, power settings, wattage control, voltage control, and even temperature control” ran an independent study with Enthalpy Analytical and the analysis of vapor from five devices found far fewer toxins than in cigarette smokeiii.

The vapor from Innokin e-cigarettes is tested in Europe according to TPD testing standards before they are sold.

Why is this important?

Tobacco kills more than 8 million people each year. More than 7 million of those deaths are the result of direct tobacco use while around 1.2 million are the result of non-smokers being exposed to second-hand smoke.”iv

Smoking kills. Many of us at Innokin are ex-smokers and we have family and friends who have suffered the ultimate price from smoking. We wholeheartedly believe that vaping technology can save the lives of millions around the world and prevent their loved ones from suffering emotionally and financially. Our teams at Innokin continue to design and manufacture high quality vaporizer kits that improve with every year.

Did vaping injure kill people in America in 2019?

Yes. More than 2500 Americans were injured and 51 killed by vaping THC with Vitamin E Acetate in 2019. The CDC stated that Illegal black market THC carts with the additive Vitamin Ev caused these injuries and deaths. The New England Journal of medicine study identified BAL fluid obtained from 48 of 51 case patients (94%)vi. From the CDC and NEJM statements it was THC carts with Vitamin E Additive that caused the EVALI sickness and deaths.

Are some electronic cigarettes are less harmful than others?

If the tank can be opened and eliquid added then it is an ‘open system’ vaporizer. There are many different types of ‘open system’ vaporizers, tanks, coils and eliquids. Choosing the correct vaporizer kit and liquid, and running the vaporizer properly is essential to minimizing harm.

What can you do to ensure your vaporizer is running properly? Here are 10 tips to minimize harm from vaping:

10 Tips on what can you do to ensure you are vaping in the least harmful way possible:

  1. Choose top quality eliquid from a trusted manufacturer.
  2. Buy eliquid and vaporizers from a trusted source.
  3. Nicotine is addictive. Start with low nicotine eliquid and only increase if necessary.
  4. Keep the eliquid bottle out of the sun and shake before using. Check the expiry date.
  5. Store eliquid properly and keep it away from children and pets.
  6. Lower temperature/wattage (MTL Vaping) produces less vapor and are less likely to burn a coil quickly.
  7. Keep your tank at least 1/3 full and do not vape if the tank is empty.
  8. As a coil is used the cotton and metal breaks down. Change your coils regularly.
  9. If a coil is burned it should be replaced immediately. Strong flavors may mask a burned coil.
  10. Use a certified wall charger when charging your device and never leave a device charging unattended.

If you are smoking please try to stop as soon as possible. Use any safe method that is recommended by your physician that works best for you.

If you are vaping then focus on stopping vaping by reducing the nicotine content of your eliquid. Be aware of the habitual triggers that push your brain into the desire for a puff. Vaping is not totally safe and there are still unknowns. The safest way is to stop smoking and vaping completely.

Your happiness and health are important! We absolutely love hearing all of the success stories from around the world from people who have quit smoking for good. Let us know when you have succeeded and stopped smoking (and vaping too!)

If you have any comments or questions about this article, or would like to read about another topic, please share your ideas below. Thank you for reading and have a great day!

Vaping is 95% Less Harmful than smoking – Paul Aaron Hare

Royal College of Physicians. Nicotine Without Smoke: Tobacco Harm
Reduction. London: Royal College of Physicians; 2016.






Your guide to the Innokin Proton Mini & Ajax kit; Setup and Beyond!

Your guide to the Innokin Proton Mini & Ajax kit; Setup and Beyond!

So, you’ve just picked yourself up an Innokin Proton Mini & Ajax kit; what next? First things first, have a look at our quick start guide. It has everything you need to know to get started with your Proton Mini.

proton mini manual

For first time or general use, follow these instructions:
1. Decide which Ajax Plex3D Matrix Coil you want to use. For a cooler, more controlled vape, give the .35ohm a try. For a warmer, more intense experience, start with the .16ohm coil. For reference, the .16ohm coil comes pre-installed in your Ajax atomizer.

2. Whichever coil you choose, it’s time to prime your coil. Priming your coil involves putting a small amount of your choice of e-liquid onto the cotton wick surface of the coil. We recommend one drop of e-liquid per cotton section on the sides of the coil. The top section of the coil should be “painted” with e-liquid alongside the cotton section of the coil. Roughly one drop of e-liquid equivalent is all that is necessary. Be careful not to drip e-liquid straight down the center, as this can cause leakage.

3. Tighten the tank up, close off the airflow control ring found at the bottom of the Ajax completely, and then slide the top cap open to fill your Ajax. Allow the tank to fill slowly and check for air bubbles appearing near the coil- this shows your coil is soaking up e-liquid and will be ready to vape soon. Once filled, allow your tank to sit in this state for a minimum of 5 minutes.

4. You’re all set! Turn the Proton Mini on with 3 quick presses of the firing bar and you’ll see the screen screen come to life. You can refer to the quick start guide for a visual guide to the main interfaces. If you chose the .35ohm coil, start at 30W and go up in increments of 1W from there until your desired performance. For the .16ohm coil, start at 50W and go up in increments of 1W until your desired performance.

Still unsure of a few things? Check out some common questions and problems you may encounter so you can be back to vaping in top shape!


Q: What is the recommended wattage range for Ajax coils?
A: .16ohm: 50-80W; .35ohm: 30-55W.

Q: My new coil tastes burnt or is harsh. Why?
A: High nicotine concentration and some added sweeteners in e-liquid can cause burnt taste almost immediately. Some flavors such as tobaccos and chocolates can taste burnt as well. Try a different e-liquid, lowering your wattage setting, opening up your airflow, or any combination of the three. If all else fails, replace the coil.

Q: My coil is spitting juice into my mouth. How can I prevent this?
A: This most commonly occurs when a coil is flooded. To prevent your coil from flooding, be sure to not “over” prime your coil from step 2, and use at least 50%VG e-liquid. Generally, thicker e-liquid can alleviate the chance of spitting and leaks.

Q: My tank is leaking from the airflow holes. How does this happen?
A: Sometimes, a spitting coil can progress into a leaky coil. Leakage from your airflow holes is a tell-tale sign you likely need to replace your coil. If you replace your coil and still have leaking issues, you may need to replace an o-ring in your Ajax. Check your kit’s box; there’s a pack of spare o-rings you might need one day!

Q: My Ajax is hot to the touch or to my lips. Is something wrong?
A: No! It’s quite normal for the Ajax, and even the Proton Mini itself to heat up a bit when in use. If it’s too hot for your comfort, try spacing out your inhales about 15 to 30 seconds apart. You may also want to slightly lower your wattage setting if you find this happening frequently.

Proton Mini:
Q: My screen says “Check Atomizer”. What’s wrong?
A: Your coil may be shorted, damaged, or used to the point where it needs to be replaced. If your coil is brand new, unscrew the Ajax from the Proton Mini and inspect the threads on top of the battery. If you see any dirt, dust, or e-liquid, clean it with a cotton swab and a small amount of isopropyl alcohol.

Q: How do I customize my Proton Mini screensaver?
A: Check out our full instructions here:

Q: Which mode should I use: wattage, TC, TCR, curve, bypass?
A: For your standard Ajax coils, wattage is everything you need to get started. However, if you’d like a custom touch to your vape, a wattage curve can add that extra personalized touch to your experience. Make sure you stay within the recommended wattage ranges of your preferred Ajax coil. TCR and TC are NOT compatible with Ajax coils. Bypass mode should only be used by advanced users and is not recommended for usage with your Ajax.

Have a bit more of an advanced issue? We’ve got your back.

-My tank is wobbling/seems unsteady when screwing in.
Your 510 connector is loose. This can be fixed by unscrewing the 4 T5 screws found on the top plate of the Proton Mini, removing the plate, and tightening the set screw found on the underside of the 510 connector. Be warned that this will void your warranty if you are within our 90 day warranty window- contact our support first if you are unsure.

-My screen is dim, flickering, or white.
Your screen connector has been damaged or disconnected within the Proton Mini. Contact your vendor for a replacement or our support line for help.

-The joystick does not click or refuses to move in a certain direction.
Attempt to clean the stick using a canister of compressed air with a thin nozzle. Blow the air at an angle so that it contacts the outside edge of the joystick.

-My Proton Mini will not charge, or runs out of battery very quickly.
Try troubleshooting your charging method by testing different USB cables and power adapters. The Proton Mini should be used ONLY with a certified 5V/2A or lower amperage charger. Be gentle when inserting the USB cord into your Proton Mini at all times.

At any time, you can contact us by emailing our support team at for more assistance. Even if you are outside of our 90 day warranty window, we will be happy to help you troubleshoot your issue as best we can.

Your guide to the Innokin Proton Mini & Ajax kit; Setup and Beyond! – Joseph Dalessandro