15sq foot shown on advertising picture while 20sq meters stated in written description. This is a Big Difference. Which is correct please?

It's extremely difficult to give an accurate answer on this as depends if the air is dead still or not. All I can say is that this bit of equipment has proved itself several times when battling with extremely aggressive Scottish midgies.

Can you refill the Butane Gas Cartridges?

Have seen someone on YouTube doing it but I wouldn't advise it..

How to use it? Does it stand in an area you sit in while camping? Or do you have to hold it?

We usually put it on our picnic table and that protects the area we sit. You don't need to hold it we lay it flat with the black grid facing up. We have tried using on the move and it doesn't work well like that but when in camp it works really well.

Can I use this inside a summerhouse, with the doors open?

The instructions (inside the box) state that the device should not be used in a confined space. It There is risk attached to using in a summerhouse even with the doors open. I would suggest asking the manufacturer for further guidance. I now use a plug in device from Jungle available from Amazon or currently on offer in Wilko.

Graphite Mr300 | Desertcart South Korea

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Description

🦟 Outsmart mosquitoes, not your style—protection that keeps you in the moment!

EFFORTLESS MOSQUITO DEFENSE - Activate and enjoy up to 20 sqm of DEET-free protection—no sprays, no mess.
LONG LASTING REPELLENT MATS - Each mat works for 4 hours with a clear color-change indicator for timely replacement.
SAFE SKIN FRIENDLY FORMULA - EPA-reviewed, unscented, and free from harmful chemicals—repel bugs, not your skin.
PORTABLE READY FOR ADVENTURE - Lightweight graphite design fits seamlessly into your camping, fishing, or backyard setup.
POWERFUL 12 HOUR FUEL CARTRIDGE - Compact cartridge fuels continuous protection for half a day—perfect for extended outdoor sessions.

The Thermacell MR300 is a portable, DEET-free mosquito and midge repeller that creates a 20 sqm zone of protection using a 12-hour fuel cartridge and replaceable 4-hour mats. Its unscented, EPA-reviewed formula offers safe, effective, and smoke-free defense ideal for outdoor activities like camping, fishing, and backyard relaxation.

Specifications

ASIN	B07DW2TRYB
Best Sellers Rank	1,755 in Garden ( See Top 100 in Garden ) 354 in Fly Control
Brand	Thermacell
Brand Name	Thermacell
Customer Reviews	4.2 out of 5 stars 150 Reviews
Global Trade Identification Number	00843654001692
Included Components	Inspect Repeller
Indoor Outdoor Usage	Outdoor
Item Form	Aerosol
Item Nype Name	MR300 Repeller
Item Volume	3.63 Fluid Ounces
Item form	Aerosol
Item volume	3.63 Fluid Ounces
Manufacturer	Thermacell
Manufacturer Part Number	THCMR-300L
Material Features	Portable,Lightweight,Deet-free
Material feature	Portable, Lightweight, Deet-free
Model Number	THCMR-300L
Number of Items	1
Number of items	1
Scent	Unscented
Scent Name	Unscented
Size	12 g (Pack of 1)
Target Species	Mosquito
UPC	843654001692
Unit Count	12.0 gram

Reviews

A**S

Excellent

12.08.2025

G**M

100% recommended

Best of the best! Value for money! Was our life saver from moscitos. Awesome !

10.10.2024

R**P

No flies on this (soz)

Used a fair bit now. Lights easily, only gone out once. I think it works, certainly not been bitten, including Scotland in summer. Relatively chunky and heavy when backpacking, but worth it for no bites when sprays don't work

24.07.2021

S**N

Was a little surprised

I was really sceptical about this product but was pleasantly surprised in the end. I needed it to keep the midges away and it certainly did that. I would recommend this to anyone.

5.12.2022

D**H

Hmmmmm. Not great against midgies

If you are travelling to the west coast of Scotland, I’d give this contraption a miss. Was pretty useless against the midgies!

3.08.2024

A**G

Would definitely buy another one.. Very fast delivery..

Great product, used it on a camping trip and it kept midges away... Excellent!!

13.12.2020

A**R

Excellent piece of kit

Works very well

9.07.2021

F**Y

Not midge in Scotland proof

Dint work ! Got bitenngood style

21.07.2024

C**E

Le tiene distanti

È vero, le zanzare non si avvicinano...

1.08.2019

S**O

Di aiuto

Con queste zanzare così fameliche c'è poco da fare, comunque è di aiuto.

17.08.2023

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