• All ThermaCELL models use the same refills.
• Each cartridge lasts up to 12 hours, and each mat lasts up to 4 hours.
• Mat has mosquito repellent and earth scent in it.
• Refills can be stored for long periods of time.
• Cartridges and mats don't need to be used all at one time. For example, one could use the cartridge and mat for an hour a day. Simply turn the unit off and restart when ready. If time between use will be more than a 1 week, store the mat in a dry, dark place.
• The repellent, allethrin, is a synthetic analog (chemical copy) of a naturally occurring insecticide, pyrethrin, found in the pyrethrum flower, a member of the chrysanthemum family.

Using the same highly effective, hunting friendly mosquito repellent technology that serious hunters have sworn by for years, we’ve added a new cover scent option to help disguise hunters from a deer’s best defense… his nose.

The new Earth Scent mosquito repellent mats offer the same 15 x 15 ft zone of protection against pesky biting insects as the original ThermaCELL unscented mats – but with the added benefit and convenience of a cover scent.

When heated in any ThermaCELL appliance, the new Earth Scent product both effectively repels mosquitoes and emits a convincing scent of mucky dirt and decaying leaves – a smell designed to mask human odors and linger continuously for up to four hours per mat.