Ultrasound Facial Mask - Fast and Non-Destructive Testing

Ultrasound Facial Mask - Fast and Non-Destructive Testing

An ultrasound facial mask (also known as high-intensity focused ultrasound or HIFU) is a non-invasive treatment that uses energy to stimulate deep layers of skin.ultrasound facial mask Unlike more traditional face treatments such as microdermabrasion and AHA peels, ultrasound does not penetrate the outer layer of skin, which makes it suitable for all skin types and conditions. Aside from improving skin firmness and fine lines, ultrasound facials can also help to reduce enlarged pores, tighten puffy eyes and fade dark eye circles.

However, despite their many benefits, face masks are often associated with several problems such as poor breathability, sagging skin and uncomfortable feeling on the skin after application.ultrasound facial mask To overcome these issues, the development of new filtering materials and improved manufacturing techniques is needed. In this context, cheap, fast and non-destructive testing methods for assessing the performance of new face masks are also required.

A promising approach to test the filtration capacity of a face mask is the measurement of the transmission coefficient spectra of its main filter layer using an air-coupled ultrasonic technique. In this study, the transmission spectra of 9 different face masks were measured at several frequencies (0.3, 0.7 and 1.4 MHz). The results showed that each type of face mask presented a distinctive ultrasonic signature, which can be used for their classification and evaluation.

The measurements of the low frequency response (magnitude and phase loss) at the face mask/air interfaces allowed to estimate that the ultrasonic wave propagation through the main filter layer is mainly affected by its pore size, pore tortuosity and permeability. This conclusion was validated by the measurements performed on the individual layer components of the face masks, revealing that the ultrasonic attenuation and velocity parameters calculated before are only partially attributed to the loss produced in the individual face mask layers.

Moreover, the results show that the acoustic reflection at the face mask/air interface is proportional to the ratio of the acoustic impedances of the two media (1 and 2). This relation is used to estimate the contribution of each propagation mode to the transmission loss. In the case of a face mask with a single layer, i.e. the main filter, this value is equal to 1.

In conclusion, the ultrasonic testing of the main filter of a face mask revealed that it has a strong influence on its effective properties such as permeability and filtration efficiency. In addition, the ultrasonic technique can be a useful tool to indirectly assess some other important face mask features such as the density of its pores and surface porosity.

If you would like to try an ultrasound facial mask for yourself, our online shop has a range of professional and affordable devices available to choose from. Simply follow the link below to see what’s on offer!

With summertime on the horizon, having healthy rejuvenated skin is essential. An ultrasound facial is a great way to achieve this, but it’s important to know the benefits and risks of this treatment so that you can make an informed decision about whether or not it’s right for you.

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