Portable Ventilation & Cooling · Wearable ACActivCooling™ Helmet A cooler head, all shift.
A certified safety helmet with a solid-state cooling unit built in. It blows cooled air over the scalp, eyes and ears, switches to heating in winter, and runs up to 8 hours on a waist battery or 2 hours on a built-in one.
Two batteries, two visors, four codes
Every ActivCooling helmet has the same cooling unit and certified shell.
Helmet colour: white hat with grey cooling unit, or yellow hat with red unit. Tell us which in your enquiry.
Cooled air where heat hits hardest
ActivCooling is a wearable air conditioner built around a certified hard hat, not a fan clipped onto one.
Air in
A fan draws air into the cooling unit on the back of the helmet.
Solid-state cooling
A bismuth-tellurium thermoelectric module chills the air. No compressor, no refrigerant gas, no water.
Cool air out
4 CFM of cooled air circulates over the scalp, eyes and ears, inside the shell and behind the visor.
Heat out
The module's hot side vents through the exhaust, away from the head.
Three buttons, no app
- Long-press MODE to switch the unit on or off
- Short-press MODE to toggle between low (15 W) and high (22 W) cooling
- HEAT reverses the module for 22 W of heating on cold mornings and winter shifts
- Four-LED gauge shows charge in 25 % steps; the bottom LED blinks below 10 %, and the unit switches itself off when the battery is flat
Charge only with the supplied 12.6 V charger. The helmet can't be worn while it's charging.
Built for heat you can't air-condition
Designed for ambient temperatures of 40–60 °C, where workers lose focus and pace to the heat.
Steel, foundry & process plants
Furnace floors and hot bays where ambient air sits above 40 °C.
Heavy industryTraffic & outdoor duty
Junction duty and patrols in direct sun. Pair with the tinted visor.
Police & municipalTowers, substations & panels
Telecom and power crews working in sun with no shade to retreat to.
UtilitiesConstruction & warehouses
Roofing, steel erection and tin-roof sheds where ventilation can't reach.
SitesConfined, poorly ventilated work
Places where split ACs or wall fans can't be installed.
MaintenanceWinter shifts
The same helmet heats at 22 W when temperatures drop.
Year-round
Proven on steel floors and traffic junctions
“The helmets changed how our teams approached summer shifts. Operators no longer rushed tasks just to get out of the heat. Safety improved, and so did morale.”Ashok Kumar, Plant Safety Manager, steel plant in Gujarat
Also deployed with traffic police at Hyderabad junctions. Read the traffic police story →
Full technical specifications
From the current Jarsh technical data sheets. Ask us for the PDF with your quote.
ActivCooling™ HelmetJACH01-WEC · JACH01-WET · JACH01-WIC · JACH01-WIT
Cooling unit
- Technology
- Solid-state (thermoelectric) cooling
- Module material
- Bismuth-tellurium bi-metallic semiconductor
- Airflow
- 4 CFM (114 L/min)
- Cooling capacity
- 22 W high · 15 W low
- Heating capacity
- 22 W
- Operating voltage
- 12 V DC
- Interface material
- Al1060 / Al6063, anodised
- Designed for ambient
- 40–60 °C
Battery
- External (JACH01-WEC / WET)
- 10,400 mAh · up to 8 h · 900 g, waist-mounted
- Internal (JACH01-WIC / WIT)
- 2,600 mAh · up to 2 h · 156 g, helmet-mounted
- Nominal voltage
- 11.1 V
- Full charge / cut-off
- 12.6 V / 9 V
- Cells
- 18650 Li-ion
- BMS
- Included
Charger
- Output
- 12.6 V 5 A CC/CV
- Input
- 90–240 V AC, ~50 Hz
Visor
- Material
- Polyurethane (PU)
- Thickness
- 1.5 mm
- UV protection
- 99.99 %
- Size
- 8 × 15.5 in (S/M/L)
- Options
- Clear or tinted
Weight
- Helmet (shell + harness)
- 326 g
- Helmet with cooling system
- 614 g
- Power system
- 107 g
- Auxiliary
- 12 g
- Total helmet system
- 733 g
- Visor
- 56 g
Helmet & compliance
- Shell material
- HDPE
- Head size
- 540–590 mm, ratchet adjustment
- Standards
- IS 2925:1984 · EN 397:2012
- Quality system
- ISO 9001:2015
- Colours
- White hat / grey unit · yellow hat / red unit
- Warranty
- 1 year, then 1 year of after-sales service
Source: Jarsh ActivCooling TDS (external and internal battery). The two versions differ only in the battery.
IS 2925 results, clause by clause
The shell and harness are tested as a safety helmet first.
| IS 2925 requirement | Limit | ActivCooling result |
|---|---|---|
| Construction (clause 5) | ||
| Length of brim | ≥ 6 mm | 8.8 mm |
| Length of peak | ≤ 50 mm | 42.8 mm |
| Headband width (5.2) | ≥ 30 mm | 30.6 mm |
| Headband to shell (5.2) | ≥ 5 mm | 6.1 mm |
| Anchoring points (5.2.2) | ≥ 4 | 4 |
| Strap width (5.2.2) | ≥ 5 mm | 19.6 mm |
| Head-to-crown clearance (5.2.2) | ≥ 30 mm | 31.2 mm |
| Depth to fit (5.2.2) | ≥ 80 mm | 99.2 mm |
| Chin strap (5.3) | ≥ 19 mm | 19.1 mm |
| Nape strap depth (5.3.2) | ≥ 115 mm | 123.5 mm |
| Mass (clause 7) | ||
| Shell, without attachments | ≤ 400 g | 198 g |
| Performance (clause 8) | ||
| Shock absorption · penetration · flammability | Pass | Conforms |
| Electrical resistance · water absorption · heat resistance | Pass | Conforms |
Test reports to IS 2925:1984 and EN 397:2012 are available. Ask for them with your quotation. Not for explosive atmospheres: ActivCooling carries no ATEX or Ex rating.
In the box, and keeping it working
In the box
- 01ActivCooling™ helmet
- 02Internal or external batteryDepending on the code you order
- 03Fast charger12.6 V 5 A
- 04VisorClear or tinted
- 05User guide
Use & care
- Charge fully before first use, with the supplied charger only
- Adjust the ratchet so the helmet sits level, and keep the chin strap fastened
- Clean with lukewarm water and a soft cloth; remove the harness first. No solvents, detergents or alcohol
- Store dry at 0–30 °C, away from direct sun, heat and flammable substances
- Replace the helmet after any heavy impact, even with no visible damage
- Replace the helmet every 3 years and the harness every 2 years; the cooling system is rated for up to 11,000 hours of use
- Recycle as e-waste. The Li-ion battery must never be burned
Common questions
Still unsure? Ask us: we reply within 24 hours.
Internal or external battery: which should I choose?
How does a helmet cool without a compressor?
Does it also heat?
Is it a certified safety helmet?
Can it be used in hazardous (ATEX) areas?
Does it replace heat-stress controls?
What colours are available?
What warranty does it carry?
Do you supply in bulk and work with dealers?
Get a quote for ActivCooling™.
Tell us the quantity, battery and visor you need, and where your crews work. We reply within 24 hours with pricing, lead time and the data sheet.
Our team replies within 24 hours.