Boveda 58% 4g Individually Wrapped Bulk - 600 Pack & Tape 72% RH is Integra's answer

72% RH is Integra's answer to that

Designed with the end user in mind

it will automatically maintain ideal CO2 levels for optimum growth

It is easy to clean and roll up for storage when not in use

Boveda 58% 4g Individually Wrapped Bulk - 600 Pack & Tape 72% RH is Integra's answerBoveda 4g 58% Individually Wrapped Humidity Control Packs, 600 Count Each 4 g pack holds a half ounce at 58% RH, the drier of Boveda's two flower levels. Pure water vapor crosses a reverse osmosis membrane in both directions, so a jar that has run dry recovers rather than only holding. At 2" x 2" it lies flat under an eighth or quarter jar lid. Against the 62% version of the same pack nothing physical changes. Same size, same fill, same membrane, and