Cooling (trade)
Mobile adiabatic cooling systems for halls: economical alternative to air conditioning (without refrigerants)
Is it too warm in your hall during summer? Our mobile evaporative coolers (adiabatic air coolers) improve the working climate quickly, energy-efficiently and environmentally friendly – without climate-damaging refrigerants and without fixed installation.
- Noticeably cooler through evaporative effect (depending on conditions up to approx. 10 °C)
- Very low power consumption (e.g. 750 W for the OKM 22 for approx. 150–250 m²)
- Mobile & flexible thanks to wheels, water tank, and optional fixed water connection
- Industrial-grade for workshop, warehouse, logistics, and production halls
Rent for 1 month without obligation: Rental costs are credited upon purchase.
Request advice & quote now | Compare models
Or contact us directly: +49-2175-98195 · info@tel-gmbh.com
When halls overheat in summer: better working conditions without air conditioning
In many businesses, high temperatures arise in summer due to machine heat, solar radiation, and large hall volumes. Classic air conditioners are often expensive to purchase and operate in halls and require complex installation. Adiabatic cooling systems are a practical solution for many commercial applications: efficient, mobile, and quickly ready for use.
Advantages of adiabatic hall cooling (evaporative cooling)
- Energy efficient: No compressor technology – therefore usually significantly lower power consumption than classic air conditioners.
- Without refrigerants: No climate-damaging gases, no outdoor unit, no complex installation.
- Fresh air principle: Continuous supply of cooled air instead of pure recirculated air.
- Mobile & ready to use immediately: Set up, connect power, fill tank or connect water – done.
- Optional with air treatment: Depending on the model, with ionizer/UV technology to improve air quality.
Important: The achievable temperature reduction depends, among other things, on starting temperature, humidity, Hall layout and air exchange apply. Please refer to the temperature table in the respective product.
How does adiabatic cooling work?
Evaporative coolers (also adiabatic coolers or mobile air coolers for halls) use the natural principle the evaporation:
- Warm air is drawn in.
- The air flows through water-soaked cooling pads.
- The cooled, slightly humidified air is released into the room.
The humidity typically rises only moderately (often about 2–5%) and is hardly noticeable in many applications.
Which size fits? Compare models by hall area
The area specifications are guidelines and depend on the application conditions. We are happy to advise you for a safe design.
| Model | Recommended area (guideline) | Air output | Power consumption | Tank / Water | Noise |
|---|---|---|---|---|---|
| OKM 05 | up to approx. 50 m² | 5,000 m³/h | see product data | 90 L (auto/manual) | approx. 53/58/63 dB |
| OKM 12 | approx. 80–150 m² | 12,000 m³/h | 500 W | 70 L / 1/2" | 54–63 dB |
| OKM 22 | approx. 150–250 m² | 22,000 m³/h | 750 W | 130 L / 1/2" | < 70 dB |
| OKM 30 | approx. 200–400 m² | 30,000 m³/h | 1,110 W | 200 L / 1/2" | < 70 dB |
Application areas: adiabatic coolers for commercial and industrial use
- Workshop, warehouse hall, logistics hall
- Industrial hall, production hall, assembly areas
- Tent hall, event tent, event marquee
- Sports hall, garage, temporary work areas
Rent for 1 month – test without obligation (rental is credited upon purchase)
Would you like to experience the effect live in your hall first? Rent a device for one month. If you then decide to purchase, we will credit the rental costs.
- Quickly ready to start: mobile devices, no fixed installation
- Planning security: test under real conditions
- B2B-friendly: also for multiple devices / larger areas
FAQ: Frequently asked questions about adiabatic hall cooling
How much does an adiabatic air cooler cool a hall?
Depending on the starting temperature, humidity, air exchange, and hall layout, a noticeable cooling is possible – under suitable conditions partly up to about 10 °C. The temperature chart in the respective product is decisive.
Does the humidity increase significantly?
In many applications, the humidity only rises moderately (often about 2–5%). The actual change depends on the application.
Do I need an installation like with an air conditioner?
No. Mobile devices are set up and operated with electricity and water (tank or connection). No refrigerants are needed. and no outdoor unit required.
How is the delivery carried out?
Due to the device dimensions, delivery is usually by freight forwarder on a pallet. Please plan depending on the model approx. 1 week delivery time.
Are there discounts when purchasing multiple devices?
Yes. With multiple devices, the proportional transport costs decrease – we are happy to create an individual offer.
Consultation, design & offer
Briefly tell us hall size, area of use, and starting conditions – we recommend the appropriate device size (OKM 05 / 12 / 22 / 30) and create an offer (purchase or rental).
Phone: +49-2175-98195
E-mail: info@tel-gmbh.com
Terms under which customers find us
This page is aimed at businesses looking for the following solutions: Cooling halls without air conditioning, mobile hall cooling, evaporative cooler for halls, adiabatic cooling industry, air cooler for workshop, mobile air coolers for commercial use, Hall ventilation and cooling.
The maximum achievable cooling depends on the relative humidity: 
Our agents coolers
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Evaporative cooler / adiabatic cooler OKM 30 up to approx. 400sqm
Normal price €4.486,98 EURNormal priceUnit price / perSales price €4.486,98 EUR -
Evaporative cooler / adiabatic cooler OKM 22 up to approx. 250sqm
Normal price €2.854,98 EURNormal priceUnit price / perSales price €2.854,98 EUR -
Evaporative Cooler / Adiabatic Cooler + Air Purifier OLR 150 up to approx. 400sqm - on request
Normal price €9.531,90 EURNormal priceUnit price / perSales price €9.531,90 EURSold out -
Evaporative cooler / adiabatic cooler OKM 12 up to approx. 150sqm
Normal price €1.861,50 EURNormal priceUnit price / perSales price €1.861,50 EUR -
Evaporative cooler / adiabatic cooler OKM 05 up to approx. 50sqm
Normal price €764,90 EURNormal priceUnit price / perSales price €764,90 EUR