VapoMeter

Practical and reliable TEWL meter – TEWL, evaporation rate and permeability measurements

VapoMeter – TEWL, evaporation rate and permeability measurements

Transepidermal water loss (TEWL) is a key indicator of the skin barrier function. Accurate measurements of TEWL are important for a wide range of clinical and personal care applications.

VapoMeter is extremely practical, wireless and fully portable TEWL meter, and it operates with the closed-chamber measurement principle. Measurements are unaffected by the instrument’s orientation or ambient airflows, and take just a few seconds to perform. Accurate and repeatable results are obtained at both high and low evaporation levels. A range of Franz cell adapters are available for in-vitro studies.

BENEFITS

Short measuring time, typically 10 seconds

No horizontally positioned measurement surface needed

Wide measurement range - accurate up to 300 g/m²h

Ready to use - no daily calibration required

Non-sensitive to ambient airflows disturbing reliable measurement

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Skin TEWL measurement device

The VapoMeter has been widely used in a wide range of clinical studies and you will find several hundred journal articles on our website covering a large number of applications.

 

You can find independent studies related to VapoMeter in our Publications section.

 

Closed chamber measurement principle

At the core of the VapoMeter is a humidity sensor mounted in a measurement chamber. The chamber is closed by the skin or other measurement surface during the measurement period and is unaffected by ambient airflows. The sensor monitors the increase of relative humidity (RH) inside the chamber during the measurement phase and the evaporation rate value (g/m²h) is automatically calculated from the RH increase. Ambient temperature and humidity are recorded using an external room sensor.

Technical details

Blogs related to VapoMeter

The Delfin VapoMeter® for transepidermal water loss (TEWL) and evaporation studies

Technical Note
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The Delfin VapoMeter®: The Benefits of Closed-Chamber Measurement Principle in TEWL Measurements

Technical Note
VapoMeter

Skin hydration and transepidermal water loss (TEWL) measurements in assessment of eczema

Application Note
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VapoMeter

The Delfin VapoMeter® for transepidermal water loss (TEWL) and evaporation studies

The Delfin VapoMeter®: The Benefits of Closed-Chamber Measurement Principle in TEWL Measurements

Skin hydration and transepidermal water loss (TEWL) measurements in assessment of eczema

Locate your nearest distributor

For further information on Delfin instruments please contact Delfin head office or one of our official representatives.

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