Internet #308905459

Model #100539560

Portable Mosquito Repeller Black

  • Portable mosquito protection
  • No sprays or lotions, scent-free and DEET-free
  • 15 ft. of protection
  • See More Details

Product Overview

The Thermacell MR300 Portable Mosquito Repeller effectively repels mosquitoes by creating a 15 ft. protection zone. The MR300 Repeller can be taken virtually anywhere outdoors to repel pesky mosquitoes, stopping them before they can bite or bother you. The MR300 is the newest Thermacell portable mosquito repeller, boasting some new and improved features.
  • New features include: quiet ignition, re-engineered grill and switch, improved ergonomics, and accessory mounting system
  • Ideal for repelling mosquitoes from the backyard to the great outdoors
  • Portable and lightweight
  • No spray and no mess
  • Scent-free and DEET-free
  • No open flame, no smoky candles
  • Package contains: 1 black MR300 repeller and 12-hours of refills - 3 repellent mats and 1 fuel cartridge
  • Product is applicable for the following pest types: Mosquitos

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Compare Similar Citronella Candles & Torches

current product
Portable Mosquito Repeller Black
Mosquito Repellent Patio LanternMosquito Repellent Patio Shield TorchMR450 Armored Portable Mosquito Repeller
NamePortable Mosquito Repeller BlackMosquito Repellent Patio LanternMosquito Repellent Patio Shield TorchMR450 Armored Portable Mosquito Repeller
Product TypeTorch FuelTorchTorchTorch
Pest Common NameMosquitosMosquitosMosquitosMosquitos
Pack Size1111
View ProductView ProductView ProductView Product



Product Depth (in.)
Product Height (in.)
Product Width (in.)


Pack Size
Pest Common Name
Pest Control Type
Lawn Insect Control
Product Type
Torch Fuel

Questions & Answers


Does it also repel other insects like gnats that are around you?

Asked by LGA April 19, 2019

Thermacell has never officially tested our products on gnats, but we have heard from many happy customer that Thermacell does work against them. All Thermacell products come with a 100% Satisfaction guarantee, so we suggest giving it a try for your intended use, and if you aren't completely satisfied just call or email us.

How are the replacement mats packaged and sold? What are the costs? How often do they need to be ...

Asked by Annette May 28, 2020

There are many different pack sizes of our refills, but in general they come in a ratio of 1 fuel cartridge (to be replaced every 12 hours) to 3 repellent mats (to be replaced every 4 hours). Here's where you can find them:

Is this safe to use around cats? Also, will it hurt other insects such as bees?

Asked by Tara June 16, 2020

We’d never make anything that we wouldn’t use around our pups and felines. Follow our instructions on the box and keep the mats away from cats. Thermacell will not harm bees, just be sure to use it as directed.

Customer Reviews

  • 1182 Customer Reviews
  • 4.8 out of 5 stars overall
94% of customers recommended.
Overall Ratings
Sort By:
Cambridge MD
Bye Bye Bloodsuckers!
Customer review from logo
If you hunt where there are mosquitos you MUST have one of these!! They absolutely work as advertised creating an invisible barrier around you that keeps those blood thirsty bugs at bay!! We hunt the marshy areas on the shores of the Chesapeake Bay - at times I will set up two Thermacells in my stand as the insane numbers of the mosquitos there can "carry you away" LOL
Was this helpful?
Saint Paul, MN
Almost works too well!
Customer review from logo
We took this on a 4 day camping trip to the Boundary Waters of Northern Minnesota. It worked wonderfully! A quick note, shut it off and leave it outside of the tent. The fumes continue to linger for a while after it's turned off.
Was this helpful?
Atlanta, Georiga
A great mosquito repeller.
Customer review from logo
I have hade mine for about a year now and my dad's has j have his for about 2.5 years. I take this every were outdoors. Wether that be hiking, fishing, or hunting, it dose it's job. It dose take a minute or so to clear out an area of mosquitoes, buti turn it off one they clear out and the "shield of protection"will stay around for 10min on a normal calm wind day. The only down side is that it is more expensive than regular mosquito spray and dosn't work instantly. But, it dose every bit as it is intended to. Also, the "refills" could be a little bit cheaper, but you can find them on sale at Walmart.
Was this helpful?
Catawba, NC
Customer review from logo
For yet another year, my Thermocell has kept me mosquito bite free. i’ve always wondered if deer are upset about the scent. This time I’ve got the earth scented pads. I had a coyote come up on me mid-day within 20 yards (downwind) as well as a fox in the early evening and a deer 10 yards away, all this past week while the Thermocell was active. And it certainly clears a ground blind out of mosquitoes
Was this helpful?
Works great!!!!
Customer review from logo
We have a lantern & the Thermacell MR300. We use it anytime we are outdoors or on our patio. We love how they work. If it’s windy we move it around so we don’t get a bite & love it! Highly recommend Thermacell products!
Was this helpful?
Didn’t work
Customer review from logo
So I bought this yesterday with the bag to carry that around i went kayaking and camping i got 6 huge bites on my arm and legs didn’t work
Was this helpful?
Response from Customer ServiceAugust 14, 2019
Hi there! Thanks for the review. We are sorry that your MR300 Mosquito Repellent is not working to our quality standards, but we can hopefully help! We’ve got thousands of happy users to date, and have tested it extensively in extreme buggy conditions before we put our name on it. You can always contact us at or 1-866-753-3837 with questions or concerns. There is a 100% Satisfaction Guarantee on all Thermacell products. Before reaching out, could we ask you to try a few things? • Please be sure to properly insert the fuel cartridge and replace it approximate every 12 hours. Also, you should replace the insect repellent mats approximately every 4 hours (it will turn white on the top side). • To ensure the unit is working properly, please be sure that there is an orange light glowing in the view hole (… on the top of the repeller or on the brim of the lantern) • This product is fueled by butane which means it starts very much like a gas grill does. Turn the valve on, wait 5 seconds, then click “start”. It might take a few times like it takes a few times to get a grill going!
Saginaw Minnisota
Customer review from logo
I got this for a gift and I am very happy to have it. I use it in back yard. me and my wife will use it in when we go camping.
Was this helpful?
North Brunswick nj
It works!
Customer review from logo
As an avid bow hunter early fall can be torture when it comes to mosquitoes. Sceptical of the product however after first use it was amazing ! I went from bites all over any exposed part of my body down to 1 or 2 bites! This product is great! Easy to use , no noise and smell so far doesn’t seem to bother the deer.
Was this helpful?
It Works
Customer review from logo
Went on a motorcycle camping trip to Alaska, 9000 miles total. In prepping for the trip people kept asking if I was afraid of bears. My answer was that I was more afraid of the reported hoards of mosquitoes. I had bottles of concentrated DEET but an acquaintance suggested the Thermacell. I thought yea right. I had heard too many false stories and reports about anything other than DEET being effective. End result I bought one and didn't even try it before I left. Setting up my tent I was being swarmed by mosquitoes even though I was bathed in DEET. I didn't get that many bites but just the annoying flock of mosquitoes was horrible. I fired up the Thermacell and placed it on the picnic table and to my amazement this thing actually worked. I could sit there in peace, eat my dinner, write in my journal, read my book, ..., all without those pesky mosquitoes buzzing around my face. It worked as they said and I had a clear area of several feet.
Was this helpful?
West Monroe Louisiana
Easy to use and goodnight does it work!
Customer review from logo
Got this last Christmas and will not go to the turkey woods or fishing without it! I swear by mine and have recommended it to family and friends!!
Was this helpful?
Review this Product
Share your thoughts with other customers