Thermacell Insect Repellent Pink Realtree W/1 Tr1 Model: MR-PTJ
Features: 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.
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.