Leman HP Max300 CaCl₂ Desiccant Bag
When goods travel across oceans or sit in warehouses for weeks at a time, uncontrolled humidity is one of the most common causes of spoilage, mold, corrosion, and lost product value. The Leman HP Max300 Calcium Chloride (CaCl₂) Desiccant Bag is engineered to meet exactly this challenge, offering industrial-grade moisture absorption for businesses that need reliable protection during long-distance transport and warehousing.
Overview
The Leman HP Max300 uses Leman Groups proprietary Advanced Absorption Technology (AAT), giving each bag the ability to absorb moisture equal to up to 300% of its own weight. A specially engineered fabric layer increases surface contact area to optimize the absorption process, while a one-way, non-leaking Tyvek outer layer ensures moisture stays locked inside the bag rather than releasing back into the surrounding environment. The desiccant core is sourced locally and produced with environmentally friendly materials.

Construction
- Absorbent core: Crystalline calcium chloride (CaCl₂), free of harmful additives
- Protective shell: Heat-resistant, waterproof polyester fabric that prevents leakage
- Outer covering: A Tyvek moisture-barrier layer that helps the bag maintain performance over its full service life
Quality Standards
- Manufactured to ISO 9001 quality standards
- Meets HACCP requirements, making it safe for use in food-related applications
- Independently tested by reputable laboratories to verify real-world performance
Key Benefits
High Absorption Performance
Each bag can absorb up to 300% of its weight in moisture, rapidly bringing humidity down to safe levels during long-haul shipping. Even distribution of CaCl₂ throughout the bag maintains stable absorption pressure and prevents the "caking" or clumping effect that can occur under high-humidity conditions.
Extended Service Life
Absorption effectiveness lasts up to 2 months, depending on ambient environmental conditions. The sealed, leak-proof design protects both users and the surrounding environment throughout the products working life.
Environmentally Responsible
CaCl₂ is a non-toxic compound that can be recycled once its absorption capacity is exhausted. The manufacturing process follows ISO 14001 standards, reducing CO₂ emissions and energy consumption.
Applications
- Industrial production & export packaging — prevents mold, bacterial growth, and quality degradation caused by high humidity widely used in warehouses and in container loading for export shipments, especially long sea voyages of 30–45 days
- Warehouse and container humidity control — maintains stable storage conditions for moisture-sensitive cargo such as leather, paper, synthetic fibers, and other export goods, helping reduce spoilage-related losses
Business Benefits
- Lower maintenance costs — fewer replacements and shorter maintenance cycles reduce labor and material expenses, while minimizing product loss from moisture damage
- Improved product quality — tight humidity control helps preserve flavor, color, and durability, supporting compliance with international quality standards and strengthening brand reputation
- Easier regulatory compliance — integrates smoothly into internal quality management systems, helping businesses achieve ISO certification more efficiently