Boveda technology works 2-ways.
Other products work just 1-way.
Until Boveda, ambient temperature and humidity affected moisture inside packing. Boveda’s patented 2-way humidity control continually responds to ambient conditions by adding or removing moisture to affect the packaged environment and deliver the pre-determined RH (relative humidity).
- See more at: http://www.bovedainc.com/#sthash.LoXvhRyf.dpuf
