Which of the following is NOT a feature of the spray tan booths?

The correct answer is that in-bed aromatherapy options are not a feature associated with spray tan booths. Spray tan booths are designed primarily for the application of tanning solutions, focusing on providing an even and customizable tan through features like automated spray technology.

While they do offer color options such as clear or bronze to cater to different preferences, and rapid rinse solutions that allow clients to wash off the solution sooner while still achieving a deep tan, the addition of in-bed aromatherapy options falls outside the core function of these booths. This feature is more commonly found in tanning beds or wellness therapies, which prioritize relaxation and scent enhancement rather than the tanning process.

The ability to achieve 2-4 shades darker is a main selling point of spray tanning technology, showcasing its effectiveness in providing a range of tan intensities to meet clients' aesthetic desires. Therefore, the emphasis on tanning solutions, color flexibility, and rapid results is what defines a spray tan booth, leaving out the concept of aromatherapy as unrelated to its primary function.