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Our products contain active ingredients that repel mosquitos and inactive ingredients that assist with their release into the air. Our rechargeable platform repellent cartridges use metofluthrin as the repellent active ingredient. The fuel powered repellers use allethrin as the active ingredient.

The Thermacell product may be toxic to mosquitoes and if they are confined in the protective zone. The science and data on our ingredients indicate that they should not be of concern, as used the Thermacell product, for people or pets. Thermacell's extensive data is thoroughly reviewed by the US EPA and multiple other regulatory agencies around the world in the product approval process. You should always use the product according to label instructions.

All of our formulations and active ingredients have been evaluated for potential human, animal, and environmental exposure scenarios. Data supporting these evaluations has been thoroughly reviewed and accepted by the US EPA and multiple regulatory agencies around the world. As such, they are approved for use when used as directed.

Thermacell products should be used according to label directions. This does not include wearing the repeller during use. Thermacell products work best when placed on a flat surface and may not be as effective when worn. Accessories that may allow for attaching the repeller to your body are only meant for transporting the device. Our products should not be worn while in the holster or with the clip, the devices get hot 385F. Our products work best when they are placed flat on a surface with the heat plate facing up, this is the optimal positioning of the device in order to heat and dispense the repellent effectively. If your wearing the device and it's in the vertical, it's not heating the repellent MAT effectively it's only being heated to about 50%. The clip and holster are only meant for transporting the device hands free.

Our tests have shown that the amount of ingredient deposited on surfaces near the Thermacell device is below what even sophisticated scientific instruments can measure, which is less than one billionth of a gram on one cm2. But, in instances where the product is used around fruit and vegetable production, we recommend as best practice that the produce should be thoroughly washed before consumption.

There are no EPA or other governing agency use restrictions for use around children. The science and data on our ingredients indicate that they should not be of concern, if used according to label instructions, for people or pets. Thermacell's extensive data is thoroughly reviewed by the US EPA and multiple other regulatory agencies around the world in the product approval process. The review process includes evaluating pregnant women, infants and toddlers. You should always use according to the label instructions. If you have questions about using the product around your children, you should contact your physician.

The science and data on our ingredients indicate that they should not be of concern, when used according to label directions, for people or pets. Thermacell's data is thoroughly reviewed by the US EPA.

There are no EPA or other governing agency use restrictions for use while pregnant. The science and data on our ingredients indicate that they should not be of concern, if used according to label instructions, for people or pets. The review process includes evaluating pregnant women, infants and toddlers. If you have questions about using the product while pregnant, you should contact your physician.

Thermacell Repellers may be used around fire pits or camp fires. For safety, we recommend that the repellers be no closer than three feet from the fire. Performance may also be affected if the repeller is too hot.

The US EPA and WHO have concluded that there is a reasonable certainty that no harm will result to bees or other terrestrial wildlife if using the product according to label instructions. The mosquito repellent vapors produced by our product rapidly disseminate in the air and little of the repellent ingredient falls on surfaces such as surrounding foliage where bees might land. Our mosquito products are also most often used in the evening when bees are returning to their nest (also true of butterflies and other foraging insects). If you raise bees, avoid using repellent in the immediate vicinity of the bee hives.

There are no restrictions on the use of our products in backyards or anywhere food may be served. Please, be sure to always use the product according to the label instructions.

The US EPA and WHO have concluded that there is reasonable certainty that no harm will result to the environment from use of the product. We will be approaching the EPA with additional data, which we hope will allow us to be clearer going forward about the products safety around water. In the meantime, we must recommend as best practice to run battery powered Thermacell repellers 10 feet away from a body of water and 7.5 feet away if you are using the Multi Insect repellent. Thermacell products should not be applied to water per label instructions. Thank you

Prallethrin is a member of the same family as Allethrin (repellent used in your fuel powered repellents) . It has been show to be effective against not only mosquitoes, but black flies and no-seeums.