Mosquito Repellent 40-Hour Refill for Thermacell E55

(5 customer reviews)


 Extend the Thermacell Mosquito Repellent Rechargeable E55 with this 40-hour refill.

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The E55 (not included) creates a 20-foot zone of protection against mosquitoes. Easy to use, one button keeps mosquitoes away.


  • HEAT-ACTIVATED TECHNOLOGY: Powered by a rechargeable lithium-ion battery with up to 5.5 hours of continuous mosquito protection per charge. No fuel to monitor and replace. Emits scent-free repellent that drives away mosquitoes.
  • EFFECTIVELY REPEL WITHOUT SPRAY OR SCENT: Repel mosquitoes without DEET sprays or lotions on your skin. No smoke, flames, or harsh odors like citronella. Enjoy max protection in 15 minutes. Unscented, liquid repellent cartridges are easy to replace.
  • ADVANCED REPELLENT: 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.
  • THERMACELL GUARANTEE: Backed by Thermacell Guarantee. See packaging for details. Includes one 40-hour refill. Compatible with Thermacell Rechargeable repellers – Radius and E55 (does not work with fuel and mat powered repellers).
How it Works
Image 3


Brand Thermacell
Scent Scent Free
Item Volume 0.33 Fluid Ounces
Material Feature No Spray Mosquito Repellent
Item Form E-Series Refill

Additional information

Weight 0.02 lbs

Thermacell Repellents Inc.

5 reviews for Mosquito Repellent 40-Hour Refill for Thermacell E55

  1. James McAllister

    This works as advertised. I know. I use it all the time.I live in North Carolina. My porch faces a deep ravine covered by forest with a creek at the bottom. It is not a question of if there will be mosquitoes but can I make it to the door without being eaten. Since I purchased my Radius a year ago I have been able to sit out in the evenings and read and listen to the forest sounds without being bothered by mosquitoes. I get the 40 hour refills because I know they work. I keep an extra one in my pantry and reorder when I use it. I have given friends and family a Radius as gifts. I am 66 yrs old and have never seen anything that works like this. When used as directed it works. Don’t expect coverage for a 400 sq ft deck. If the wind is blowing the mosquitoes are usually gone. If you want a place at your grill or between two chairs on your deck that is bug free this is the way to go. It takes 5-10 minutes to build up the area of protection but it works.

  2. Kim C.

    HIGHLY RECOMMEND!!These are great ! So glad these are available. We live in the south and spend a good deal of time on our patio. These work fantastic for keeping mosquitos away! We also have the thermacell that use the butane cartridges but these are much more economical since you recharge with a cord. Had a slight ordering issue from RV but I contacted Thermacell and they made it right the same day. Wonderful customer service.

  3. Michael

    a few design issues…first off i think the product works well enough, i’m just a bit annoyed at storing the unused product.the refill comes with a plastic ‘lid’ that snaps into place. my issue is that with the lid on you can’t keep the refill in the base station since the lid won’t fit with it in place, and the rounded bottom means you can’t sit it up on your shelf. i’m paranoid that the repellent will leak out if the refill isn’t standing up even with the lid on.ultimately i wish i could store the refill in the diffuser long term without needing to take out the cartridge, finding the flimsy cap, etc.Also the ‘control’ sucks

  4. Kelly F.

    Alaska MosquitoesI purchased two of these to use in the summer in Alaska. We have mosquitoes that will swarm you and make you run from your truck to the house as fast as possible. We are able to sit comfortably on the front porch and eat. No mosquitoes in sight. We are very pleased.

  5. Pen

    This works but like all solutions has drawbacks.This does work well on mosquitos without causing environmental (or pet) concerns. It works better if you let it run for a bit before you dive into the mosquito territory. That said – it’s estimated that each pod lasts 40 hours – how does one track that? Do you put a sticker on the side of the device and put a hashtag every time an hour passes? The machine doesn’t beep or alert you when it’s run out. It also will run all night long and waste your expensive product if you forget to turn it off and bring it in when your evening ends. Perhaps future generations of the device will sync to your phone and remind you like parking spaces….

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