For cannabis brands & cultivators
HumidiShield™
The Invisible Humidity Control Liner
A patented, solid-state 2-way humidity disc built into the lid — holds a stable 62% RH at ±2% precision. Liquid-less, salt-free, no direct contact with your product.
Humidity control, built into the lid
HumidiShield turns any jar into a self-regulating microclimate — three layers working as one to keep flower fresh, aromatic, and contamination-free from cure to shelf.
Heat-Sealed Liner
A plant-fiber disc is heat-sealed directly to the jar rim. It seats flush with nothing loose to insert — the foundation of the sealed microclimate.
2-Way Humidity Control
The 100% biodegradable bamboo-fiber core absorbs moisture when it’s humid and releases it when it’s dry, holding a steady 62% RH at ±2% precision — in any climate.
Friction-Fit
A cap-side gasket completes the seal, locking the microclimate in every time the jar closes. Three components, one effortless system.
Why brands choose the liner
2-Way Humidity Control
Absorbs and releases moisture to hold a stable 62% RH, ±2% in any climate.
Eliminates Static
Zero static cling, so delicate flower stays intact and contamination-free.
Bamboo & Wood Fiber
Compostable and FDA-compliant, safe for moisture-sensitive goods.
Activates In-Jar
Works the moment the jar is sealed — no loose packs, no salt, no liquid.
Liner Specifications
46mm fiber disc · sized for standard jars
| Size (jar volume) | Water Desorption (g) | Water Absorption (g) |
|---|---|---|
| 50ml & 100ml | 0.125 | 0.125 |
| 70ml & 110ml | 0.09 | 0.09 |
Diameter 46mm · Liner D52 available for B2B (10,000-unit cases) · 1-year shelf life unopened.
Built to your spec
Die-cut to any dimension
The solid-state fiber can be die-cut to fit any exact lid or jar diameter — no tooling limits.
Invisible by design
Friction-fitted into rigid jar lids or built directly into flexible bag walls. The customer never sees a pack.
Custom film & print
Breathable Tyvek or PET outer films with full custom printing to carry your brand.
Tunable 30–90% RH
Set to your formula’s exact target — standard 62% or 73%, or anywhere in between.
Adjustable conditioning
Modifying fiber thickness changes surface area and reaction time — the only provider able to tailor activation speed.
Controlled breathability
Specific outer materials control exactly how fast the fiber breathes, for consistent results at scale.
Certified & compliant
Food-contact compliant · 100% biodegradable bamboo-fiber core · safe for moisture-sensitive goods.
Built for cannabis brands & cultivators
Available in 10,000-unit cases for packaging at scale. Talk to our team about samples, custom RH levels, branding, and supply agreements.