2 way 58% control humidity - Boveda

The product :

Scientifically designed to maintain relatively accurate humidity in an enclosed space and available in several humidity levels namely that Boveda have created the world's first 2-way humidity controller.

This never humidifies more than the relative humidity (RH) on the pack, so there is no "too much".

You think in terms of minimal use because the more you use, the more effective it is and the longer it lasts.

Refer to the usage chart for the correct number of Boveda to maintain accurate relative humidity (RH).

Each Boveda consists of a specially prepared saturated solution of pure water and natural salt, plus this solution is contained in a "reverse osmosis" membrane permeable to water vapour.

In a closed container, Boveda maintains a predetermined level of relative humidity (RH) by releasing or absorbing purified water vapour, as required, through the membrane.

Boveda provides the cleanest and purest moisture of all other products available on the market today.

Note: Do not mix Boveda HR levels in the same container and do not use in the same container with other humidifiers as they will fight each other and simply reduce their effectiveness.

Use :

   4 g : up to 14g botany
   8 g : up to 28g of botany
 67 g : up to 450g botany
320g : up to 2250g botany

Our opinion :

An indispensable object to preserve its grass well with the optimal humidity in any situation.