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Products

Adsorption dehumidifier
A4 110V

Adsorption dehumidifier A4 110V is developed for efficient operation on commercial and construction sites.

Reliable solution for fast deployment

The adsorption dehumidifier A4 110 Volt version is part of Corroventa’s commercial and construction line, designed for both small and large dehumidification assignments. The dehumidifier can supply an air volume of 250 m³/h and a drying capacity of 17 l/day at 60 % RH and 20°C.

The A4 110V enables fast deployment and intuitive operation, thanks to its easy-to-use analogue controls – making it suitable for everyone, from occasional users to professionals. With a compact and robust design, the adsorption dehumidifier delivers powerful performance across a wide temperature range – from heated environments to cold, unheated spaces with varying humidity levels. This makes it ideal for use on construction sites to ensure optimal climate conditions and speed up the building’s drying process. The A4 110V is built to withstand tough conditions and deliver long-term reliability.

250

Dry air volume (up to)
(m³/h)

17

Drying capacity
(l/day)*

*At 60 % RH and 20°C.

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Developed with the user in mind

  • Slim and lightweight design: Easy to carry close to the body, reducing strain on the back.
  • Ergonomic handle: Ensures an easy grip. The power cord can be wound around the handle and secured with a magnet.
  • Rounded, soft rubber corners: Enhance comfort when carrying the machine and help protect surrounding surfaces like door frames.
  • Flexible air distribution: Equipped with dampers and 50 mm and 100 mm connectors, allowing customised airflow and easy turbine connection for pressure drying set-up.
  • Low noise operation: Contributes to a quieter and more pleasant working environment.
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Frequently asked questions

What types of drying applications are A4 110V suitable for?

This unit is suitable for both general moisture control and complex structural drying tasks. It works standalone to produce dry air that helps reduce moisture in ambient air and dry materials in open spaces, such as construction sites or water-damaged areas.

In more specialised drying scenarios, the A4 110V can be used in combination with a turbine to perform pressure drying of layered structures. Effective drying requires systems that can push dry air through these layers, and that’s where the turbine and adsorption dehumidifier work together to deliver targeted, efficient drying.

Read more here

What area can A4 110V dry?

A rule of thumb is that you should strive for approximately two air changes per hour when using an adsorption dryer. An A4 110V adsorption dehumidifier with a dry air flow of 250 m³/h can therefore be sufficient for a room of 50 m² if the height to the ceiling is 2.5 meters.

Keep in mind that open windows, doors, or unsealed areas will affect the drying conditions. The more air leakage, the greater the capacity required. Enclosed spaces provide better control and more efficient drying. Make sure to assess and understand the specific conditions of the area before starting the drying process, to ensure the best possible results.

Does A4 110V require a wet air hose to evacuate moisture?

Yes, the wet air must be vented externally. The dehumidification process is based on adsorption, where moisture is bound to a drying material inside the unit. The captured moisture is then released as humid air (wet air), which needs to be directed out of the room or targeted area. Make sure there is a duct or opening available to allow the wet air to exit. If not properly vented, the moisture may remain in the space, reducing the efficiency of the drying process.

How often does A4 110V need maintenance and service?

The servicing requirements depend on the conditions in which the unit is used, such as dust levels, humidity, and operating time. Regular checks and cleaning help ensure optimal performance and extend the unit’s lifespan. Read the manual for detailed maintenance and service recommendations.

What temperature range can the A4 110V operate in?

The choice of dehumidifier for a specific project depends on several factors, including moisture levels and temperature conditions. Corroventa’s adsorption dehumidifiers, such as the A4 110V, are designed to perform reliably across a wide temperature range and in varying humidity levels — from -10 °C up to +35 °C. This makes them versatile and ideal for use in both cold environments, like unheated construction sites, and warmer conditions. Their broad operating capability ensures effective moisture removal regardless of climate, helping maintain efficient drying performance all year round.

Can A4 110V be left running 24 hours a day?

Yes, the unit is designed for continuous operation and can safely run 24 hours a day. For added efficiency and control, it can be connected to a hygrostat, which automatically stops the dehumidification once the desired humidity level is achieved, while the fan will continue to run. This helps optimise energy use while maintaining effective moisture control.

Can the fan speed of the A4 110V be adjusted?

Yes, A4 110V features two fan speed settings – high and low – which can be easily selected using the High/Low button. This allows you to adjust airflow based on the drying needs of the environment, helping optimise performance and energy use.

Do you offer replacement filters for the A4 110V?

Yes, replacement filters are available for this unit, article number 1002720. For easy ordering and more details, you can find it here. Regular filter replacement helps maintain optimal performance and prolongs the life of the unit. Read the manual for further guidance.

Technical data 

Capacity (20 °C, 60 % RH) 17 l/day
Dry air volume 250/200 m³/h**
Nominal dry air flow rate 250 m³/h
Noise level (3 m) 50-55 dB(A)*
Supply voltage 110VAC / 50 Hz
Rated power 1250 W
Power consumption (20 °C, 60 % RH) 1200/950 W**
Dry air outlet 2 x Ø50 + 2 x Ø100 mm
Wet air outlet  1 x Ø80 mm
Power cord length 5 m
Weight 19.6 kg
Dimensions (L x W x H) 475 x 295 x 430 mm
Article number 1006585

*Depending on selected operating mode and installation.
**High/low speed.

Accessories

Additional items
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Air filter 1002720 (Process air)

Air filter for our adsorption dehumidifiers in the A2 + A4-series.

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Hose Ø51 mm

Hose Ø 51 mm for distribution of air and liquid.

Slang

Hose Ø82 mm

Hose Ø 82 mm (kitchen fan hose) very easy and flexible for temporary wet and dry air distribution.

Slang

Hose Ø102 mm

Hose Ø102 mm (kitchen fan hose) very easy and flexible for temporary wet and dry air distribution.

Hygrostat

Humidistat HR1-5

Humidistat HR1-5 fits all Corroventa’s normal dryers. Used during drying when the conditions are considered sensitive or particularly critical.

Questions or concerns?

You can always contact us at Corroventa if you have any inquiries about our products or solutions. Do you have a challenge with water, moisture, odor, radon, or pests? Reach out to our headquarters, and we'll assist you further.

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