Stop condensation before it damages your electronics
A bidirectional humidity-control fiber pack engineered for the sealed electrical microenvironments inside EVs, energy storage systems, and telecom infrastructure.
Tech Highlights
Bidirectional moisture control, validated to automotive-grade endurance
Unlike single-use desiccants, the fiber core absorbs and releases moisture to hold an ideal humidity level inside sealed electrical enclosures — preventing the condensation that shortens component life.
Water absorption @ 40°C / RH 95%
Absorbs more than its own weight in 24 hours with no water seepage on the surface.
Absorb & release @ 40°C / RH 50–70%
Releases stored moisture when the air dries out, keeping the microenvironment balanced.
Temperature cycles (−55 to 110°C)
Rated from −55°C storage to 125°C high-temp limit. Halogen-free and non-corrosive to steel, brass, magnesium and aluminum alloys.
Engineered for EV & e-mobility platforms
Day-night temperature swings drive condensation into the sealed electronics that global automakers depend on. The fiber pack peels-and-sticks into any enclosure to keep critical modules dry.
- High-voltage battery packs & Battery Management System (BMS)
- Intelligent driving domain controllers & module enclosures
- Motor and inverter humidity control
- Lighting assemblies, cameras / ADAS sensors, charging ports
Where it works
Protecting energy infrastructure everywhere condensation forms
Prevent moisture damage to electrical equipment caused by condensation from day-night temperature differences at the site.

Energy Storage Systems
Battery container enclosures and BMS cabinets exposed to outdoor humidity cycling.

EV Charging Stations
Sealed power electronics and connectors that must stay dry through every charge cycle.

5G Towers & Base Stations
Remote radio units and electrical cabinets protected against base-station condensation.
Peel, stick, protect
An inner 2-way humidity-control fiber core inside a microporous, breathable outer film. One side carries a 3M double-coated adhesive, so the finished pack mounts to virtually any surface inside the product.
- Fiber pack: 61 × 30 × 4.5 mm · Sticker: 50 × 24 mm (size customizable)
- Single pack weight < 4 g · core density ≥ 0.5 g/cm³
- Outer enclosure: high flame retardancy · inner core: low flame retardancy
- Fully biodegradable · RoHS-compliant (Pb, Hg, Cd, Cr, PBB, PBDE…)
Detailed Specs
Performance & environmental specifications
| Property | Specification |
|---|---|
| Water absorption (40°C, RH 95%) | ≥ 2.1 g/pack · no water seepage at saturation |
| Water absorption rate | ≥ 0.09 g/hr/pack |
| Water release rate | ≥ 0.08 g/hr/pack |
| Operating temperature | −55°C storage / 125°C high-temp limit |
| Humidity & heat lifespan | 85°C, RH 85%, 1000 hrs |
| Temperature cycling lifespan | 1600 cycles (−55 to 110°C) |
| Vibration & impact | 5–200 Hz sine · 50 m/s², 11 ms half-sine, 600 cycles — no detachment |
| Adhesive (3M backing) | Bonding > 0.4 N/mm · shear > 16 kPa · ≥ 70% retention after aging |
| Halogen / corrosion | Chlorine & bromine < 900 ppm · non-corrosive, mold level 1 |
| Compliance | RoHS environmental protection requirements |
Specifications subject to refinement; custom RH set-points and pack sizes available on request.
Protect every mile, every cycle, every site
Talk to our team about custom RH set-points, pack sizes, and volume pricing for your application.
Get a QuoteAnti-condensation Fiber Pack | EV, Energy Storage & 5G | ATMOSIScience
ATMOSIScience's Anti-condensation Fiber Pack delivers bidirectional 2-way humidity control for the sealed electrical microenvironments inside electric vehicles, battery energy storage systems, EV charging stations, and 5G telecom infrastructure. The breathable fiber core absorbs and releases moisture to prevent condensation, extending component life across day-night temperature swings.