Thermacell Mosquito Repellent E-Series Rechargeable Repeller with 20’ Mosquito Protection Zone Includes 12-Hr Repellent Refill

(9 customer reviews)


Thermacell’s largest area repellent zone available, the E90 provides a 20-foot zone of advanced mosquito protection.

Available in several colors.

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The E90 is easy to use and provides hours of scent-free, mess-free mosquito defense. Our largest area repellent zone available, the E90 provides a 20-foot zone of advanced mosquito protection. Audio cues and LEDs let you know you’re protected and how much battery life remains. Keep mosquitoes away with the simple push of a button. Features a long-lasting 9-hour battery life.

  • E90 creates a 20-foot zone of protection against mosquitoes – 80% more area than our original line. Easy to use, one button keeps mosquitoes away.
  • Powered by a rechargeable lithium-ion battery with up to 9 hours of continuous mosquito protection per charge. Can charge while operating to extend run time.
  • Repel mosquitoes without DEET sprays or lotions on your skin.
  • 12 hours of mosquito repellent included.  Unscented, liquid-repellent cartridge is easy to replace. Stay protected even longer with a 40-hour repellent refill (sold separately).
  • Independently tested and EPA reviewed for safety & effectiveness. Repels tough mosquitoes, including those that may transmit Encephalitis, West Nile Virus, and Zika Virus. People and pet friendly.
  • Extend warranty to 3 years with registration (automatic 2-year warranty included).  See packaging for details.
  • Includes: One 9-hour rechargeable repeller with a built-in Li-Ion rechargeable battery, one 12-hour refill repellent cartridge, and a USB charging cable.

From the manufacturer

New E55 Part 1
New E55 Image 2
New E55 Image part 3
E55 Part 4

Click here to take 15% off the E90 and E90 this Labor Day!

Product details

Brand Thermacell
Scent Scent Free
Item Volume 0.33 Fluid Ounces
Material Feature No Spray Mosquito Repellent
Item Form Liquid

Additional information

Weight 0.32 lbs

Thermacell Repellents Inc.

9 reviews for Thermacell Mosquito Repellent E-Series Rechargeable Repeller with 20’ Mosquito Protection Zone Includes 12-Hr Repellent Refill

  1. Edwing F.

    Me funcionó muy bienMuy eficiente, lo use dos veces y ninguna picadura tuvimos, pero NO DURA mucho el cartucho que viene, solo duró como 12 hr

  2. MR

    Unusable as refills are not availableThis is advertised and sold as a refillable product – however refills are not available. Avoid.

  3. Christine

    Glorified wireless diffuserTotally crap, only a diffuser at end of day and very hard to get refills. Stick with normal plug ins…..

  4. Elaine Robertson

    Refill arrived half full.The product wasn’t packaged properly. The refill unit had leaked into its plastic bag and absorbed into the cardboard box. Not only do I have less repellant, but metofluthrin is toxic and not supposed to be handled.

  5. Sturmar

    Save your moneyCan’t get refills and regardless it does not do what it says it should. I so wanted it to work but disappointed it didn’t.

  6. Ty R

    Works pretty well on these Michigan summer nightsThis Thermacell Mosquito Repellent seems to work pretty well and to just about what it claims on the packaging. Anyone who has been out in Michigan summer nights know that it can be pretty treacherous to be outside and that a goo repellant can be the difference between a nice night outside with friends and running for cover from the blood-thirsty, disease-ridden, annoying flying things leaving you swollen and pocked-covered.i started it and it took a moment to warm-up, after that I saw some light vapor coming out of it but that was about it. No real smell or sound besides a very light hum. The unit is rechargeable but I have not let it run out before plugging it in, so I don’t know how long the battery actually lasts. I use it infrequently and it would be that one time that the battery would be dead. You would think they’d include one of the longer lasting backs as a default but you have to buy the refills to get that. Otherwise, it’s been great so far.

  7. Fay

    Works great, keeps mosquitos and those nasty biting flies awayI would have given this a 5 star had I not had to wait 15 minutes before it fully activates. It is easy to recharge and easy to use, but when you get bitten a lot outside the liquids will be used quite quickly so be sure to get refills. The unit is a bit more bulky than other models, but I simply love this shade of blue and will look awesome when my pool is completed. I had a unit set always within 10 ft of me and didn’t get a single bite while working in the yard. But at times when I was lazy to move it closer to me and worked on the other side of the yard or further than 10 ft I did get bitten. That will teach me a lesson, to keep moving it with me when I work outside. It works, it really does.

  8. MacK

    It works but it’s not perfect, it’s part of a solution and get more than oneThermacell does not kill mosquitos, or rarely other insects. It emits a weak insecticide, allethrin, a synthetic version of a naturally occurring insecticide found in chrysanthemum flowers (similar to pyrethrin) – but less lethal and at levels that probably couldn’t kill a mosquito even directly over the emitter. Still it works…How it works is simply by creating an area that mosquitos don’t want to be, to lurk or hover. By doing so, it dramatically decreases the number of mosquitos in an area, but…. You need to start the emitter about 10-15 minutes in advance of going into the garden area you intend to sit in – so that the mosquitos mostly depart – it doesn’t work if you go out and then start the E55, they’ll see you before it makes them want to leave. If you set it running for 10-15 minutes in advance most of the mosquitos aren’t there to see and bite you … It’s not perfect – the odd mosquito will get into your area and bite, just a lot fewer than before. And when they say a 10-15′ radius, that’s the maximum, so you may want to put two out anyway. But it works, and most of the rest, including Citronella don’t work or don’t work as effectively.Why should you get more than one…. well first, it’s nice to put one under a table as well as on top. Second, it’s nice to not have your sojourn in the end when the charge runs out (you can plug it in and indeed use a travel usb battery.). If you do get more than one, get multiple colors so you can tell them apart (and unfortunately the 9.5 hour comes only in black.)But really, to keep mosquitos under control you need a multipoint strategy …. Insect Shield for clothing – send it to Insect Shield for better treatment (and Aedes Aegypti is no longer killed by permethrin, but they do dislike it), Mosquito Repellent (I used to use DEET but it’s unpleasant and have switched to the marginally more effective Picardin) and finally, policing the area around your garden with Mosquito Dunks in every place water accumulated for more than a few days (and them from drain grates above the sump so some gets washed in), encouraging you neighbours to do the same. Outdoor fans are also a good solution – they disrupt the mosquito’s flight – they are weak flyers.So, tedious, but there’s no magic bullet – but if you usea. Thermacell (in advance of going outside)b. Picardin or Deet repellentc. Insect Shield treat clothing (good for 70+ washes)d. set up fans over seating areas.e. Police for standing water nearby and drain it or put Mosquito Dunks in it (including dishes under plant pots, etc.)You will make it tolerable…

  9. Houston Gadget Guy

    Working well so far…but I think they need to provide better instructions and informationUpdate (5/12/22):I tried using the product on a breezy evening and as I suspected, the wind impacted the effectiveness. While I think there were fewer mosquitoes (just a guess), I was getting bitten and decided to go back inside. I do think it’s effective if it is not too windy. Will buy some more repellent and continue using it.(Original Post). Let’s start with the most important question…does it work? It does work (or at least has worked for me and my specific set up)…more about that shortly. And I will continue to use it (and purchase more repellant refills). Why only 4 stars? Instructions need to be improved and not quite sure about the value proposition (cost) for the repellents. But the product has worked for me so far (several hours of use) and I really hate mosquitos. And I did not have to put on bug repellent to keep them from pestering me.After reading several reviews and wanting to gain access to my patio without being attacked by mosquitos, I decided to buy this and give it a try. I decided on the battery operated version for my patio. The setup instructions were not clearly written (I will provide the information I wish they had provided shortly as well).I am not a entomologist or an aerosol vapor flow expert…that said, here are my observations and recommendations.1.) I don’t believe the graphic that shows a 20″ protective bubble is reasonable representation of what to expect from the product. The unit emits a vaporized repellent into the air (visualize the smoke from a candle) which is highly influenced by wind or, a ceiling fan. As the repellent is diluted to into the air, the effect dissipates, meaning less protection from mosquitos. The graphic shows a group of people sitting outdoors with a bubble shield, exactly 20 feet around them. If there is no wind, maybe that depiction is a somewhat reasonable representation. But when you set an expectation that there is a protective bubble, people will take it literally. Hence the 1 star reviews that says it does not work.In my situation, I am on covered porch where there is a wall behind me and to the left of me but the front and right side are completely open to the wind. So there is a “pocket” where the repellent is protected from from being completely dissipated or blown downwind. This would seem to me to be the ideal set up for this device. Haven’t tried turning on the ceiling fan on the porch. If the results are significantly different, I will update this review.2. Confusing instructions included in the box at best. Here is a suggestion…how about a QR code that takes you to a video called first use. Let me summarize the information I believe needs to clearly provided:a) Plug the unit in before use (instructions said this). You will see 3 chasing dots (blinking on and off in a chasing pattern) until the unit is charged (instructions have some confusing series of gray and white dots that does not look anything like what the unit looks like while it’s charging). When fully charged, the three dots above the charging port will be on. Also, no word on whether you can plug the unit into a wall socket and use it while it is recharging. And the instructions do not say it takes 5 hours to charge when the battery is completely depleted (that is what the support person told me). Also guessing the unit does not trickle charge when charging is complete…so you probably should not leave it plugged in for extended periods of time.b) The repellent is in a small plastic container with a lid. The instructions in the box don’t really show you how to hold the lid to remove it (there is a confusing drawing with two diagonal arrows which wasn’t useful at all). Hold the sides of the bottle with your thumb and forefinger. Hold the front and back center of the lid in the center with the thumb and forefinger of your other hand. Separate. Just like the picture on the RV website (which I just saw).c) How about a recommendation on turning it off after your use and whether to remove the repellent container and put the lid back on. Absolutely nothing said in the instructions. Also, maybe recommend charging the unit so it will be ready for your next use? What if you are not going to use it for a week or a month…should you not leave the unit plugged in to a charger for extended periods? Again, it would be useful to know if you can use the unit while it’s plugged in and recharging.3. General thoughts about toxicity: Google mosquito deaths and the results say mosquitos kill over 1 million people a year. One of the prominently displayed 1 star reviews talks about the toxicity and that you can get headaches or dizziness. Everyone is different and I enjoy being outside without having to put insecticide on my skin. I have not gotten headaches or dizzy. Your results may vary.Now I want to compliment Thermacell on their customer support. They answered the call pretty quickly, were very helpful and pleasant to work with. Also, very generous warranty.I have written this whole review sitting on my porch and did not have a single mosquito come near me. Houston, Texas, in May on light breeze afternoon.Again, I would recommend it to friends and would buy it again.Now for some unsolicited advice to Thermacell. Seems to me you have way too many versions of this product which confuses the buyer. Also, it appears the repellents have changed over time with some of your later repellents that are “safer” than your earlier versions. Might be useful to make this information more explicit if correct. Hopefully you are reconciling what products to sell and which products to sunset. Also, on the box that is covered with pictures and graphics, the actual product version was in smaller print and greyed out (easily overlooked). So it took me a minute to find it when support asked me what device I was calling about.Very simple electronics upgrade…I would recommend resettable timers on the device indicating battery life and how much time remains before the repellent needs to be replaced. Either LED timer display (not 3 LED lights) on the device or bluetooth app on your phone. Seems obvious you are using the “razor and blade” method of pricing for product, where razors are cheap but the blades (refills) are where you generate your profits. The unit works well enough that a little upgrade to provide the user more information about battery life or how long until I need to replace the repellent cartridge would justify paying extra for the “razor”. Just one opinion and you have been in the business for 20 years…so you know what your are doing.

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