High-pressure water mist for greenhouses – optimum humidity without wetting

Humidity is one of the most important factors for creating an optimal microclimate in greenhouses. It has a direct influence on plant health, photosynthesis and final yield. This is why water mist systems (also known as misting or humidification systems) are increasingly used in modern greenhouse production.

With the help of a water mist, the humidity is kept within optimum limits without wetting the plants or the soil and without creating unnecessary noise or discomfort.

Why humidity is so important for plants

Plants “breathe” through their pores, called stomata. Through these stomata, they take in carbon dioxide (CO₂) from the air – an essential element for the process of photosynthesis.

When the stomata open:

• water is drawn from the roots
• passes through the whole plant
• and evaporates back into the environment

This process is called transpiration and is similar to human sweating.

What happens in low humidity

When the humidity in the greenhouse is too low:

• plants close their mouths
• photosynthesis slows down
• CO₂ uptake decreases
• growth slows down
• the yield and quality of production deteriorate

With prolonged moisture deficiency, plant defence mechanisms cannot compensate for stress. In extreme cases , this leads to wilting and crop death.

How water mist helps control humidity

Water mist systems work by spraying micron-sized water droplets that:

• evaporate still in the air
• increase relative humidity
• do not wet the plants or the floor

This creates a stable and even microclimate ideal for crop growth and development.

Advantages of water mist in greenhouses

The use of water mist brings a number of benefits:

• optimum humidity for photosynthesis
• better mouth opening and CO₂ uptake
• faster growth and higher yields
• reduced stress for plants
• better temperature control
• without wetting and without mud

Flexibility and zoning of systems

Water mist systems can be designed for:

• classic greenhouses
• tunnel greenhouses
• network and shadow structures
• indoor production rooms

It is possible to divide the system into zones, allowing different humidity levels in different parts of the same greenhouse – according to the needs of the specific crops.

Intelligent microclimate management

Modern water mist systems can be integrated with controllers and air conditioning systems that allow:

• permanent mode of operation
• pulsating humidification
• variable pressure
• automatic control according to temperature and humidity

This gives manufacturers complete control over the microclimate, every day and in all seasons.

System quality – a decisive factor

The effectiveness of the water mist depends heavily on the quality of the design and components:

• high-quality noozles
• resistant materials (e.g. stainless steel)
• reliable pumps
• correct sizing

A poorly designed system can lead to uneven humidity and unsatisfactory results. It is therefore advisable to have the system built with the help of specialists.

Temperature and humidity control is critical for modern greenhouse production. Water mist systems provide precise humidification, a stable microclimate that supports plant growth, quality and yield in every season.

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