Our device delivers enough energy to kill microorganisms, but not to produce any noticeable, measurable, or meaningful degradation of the materials within the environments that you'll use them in. UV-C light can not penetrate glass and is not strong enough to damage furniture, carpets or drapes. Arc cycles are short (5-10 mins) and will not accelerate color fading.
The longer answer is that technically, every material experiences some level of "photodegradation", which is the accelerated aging of a material due to light exposure. Certain pigments and polymers tend to be more susceptible to photodegradation than other materials, but the impact on even the most susceptible polymers and pigments is negligible. An example of this would be if you leave outdoor furniture in the sun for a couple of consecutive summers, the materials may start to fade.
However, sunlight is far more harmful than UV-C due to its much broader spectrum and stronger intensity. The total amount of light delivered by the sun over the span of a couple of summers is multiple orders of magnitude more than our device will ever emit in your space cumulatively over the lifespan of the device.