All ThermaCELL models use the same refills.
- Each cartridge lasts up to 12 hours, and each mat lasts up to 4 hours
- Refills can be stored for long periods of time.
- Contains: 1 cartridge and 3 mats
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 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.
