The oral cleaning of the rpsexdoll must pay attention to safety and hygiene as well as protection of the materials to avoid aging and cracking of the silicone or TPE material caused by misuse. Neutral cleaners with a pH of 7.0-7.5 (such as Fleshlight Renew Powder), according to the 2023 Adult Materials Care Study, reduce surface corrosion hazards and demonstrate a 32% higher cleaning performance (stain removal rate ≥95%) than alkaline cleaners (pH≥9.0). The mean value of material hardness increase (Shore A) per annum was as low as 0.5 (3.2 for alkaline cleaners). For example, user A mouth-rinsed with a neutral cleaner weekly, and the hardness of the silicone lip increased from A10 to A10.5 after 3 years, whereas user B mouth-rinsed with soapy water (pH 9.5) increased to A13 within the same period and resulted in a sharp reduction in tactile sensation.
Choice of cleaner and concentration: Recommended dilution ratio of special cleaner (ToyLife Cleaner), 1:10, with one dose of 15ml (about $0.3), can account for 50cm² area of cleaning need. Experiment proved that a deviation of ±5% in the concentration would create an increase of residual rate from 0.8% to 3.5%, thus increasing the likelihood of bacterial development. Test results by RealDoll show that 70% isopropyl alcohol solution (99.9% bactericidal rate) will accelerate the oxidation of TPE material (12 /cm² year increase in crack density), while a switch to a plant-based disinfectant (e.g., 0.1% tea tree oil) can reduce the number of bacterial colonies (CFU) to < 10/cm² without material loss.
Cleaning devices and activities: Polish with microfiber cloth with a 180g/m² density, with circular movement, working in pressure ≤0.5kg/cm² to avoid surface texture destruction. Evidence provided by Japanese producer DollFantasia shows efficiency of nylon bristles (D60 hardness) 25% better, but will lead microscratch density increased up to 8 /cm² (microfiber cloth only 0.2 /cm²). For narrow crevices (e.g. tooth moulds), a tapered silicone stick (3mm diameter) can be used to clean carefully, with removal efficacy of 92% (cotton swabs are 78%).
Sterilization and drying: Sterilization by steam (80 ° C ±5 ° C for 5 minutes) will kill 99.99% of microorganisms (e.g., E. coli), but the time interval has to be restricted (≤1 occasion per month) to prevent thermal aging of silica gel (mean annual tensile strength loss between 0.8% and 2.1%). UV disinfection (wavelength 265nm, irradiance 40μW/cm²) is exposed for 10 minutes every time, the sterilization rate is the same as steam, and no thermal damage to the material is caused but equipment price is high (average cost of $120 vs. $50 for steam engines). While drying, use a low wind speed chiller (wind speed ≤3m/s) at 30cm away, and the humidity reduction time to 15% is 70% shorter than that of natural drying (20 minutes compared with 60 minutes), to avoid the growth of mold in a moist environment (when the relative humidity exceeds 60%, the probability of mildew increases to 18%).
Maintenance cycle and expense: It is recommended to clean up after use (one such instance takes 5 minutes), and the annual expense of supplies is approximately $15. If the stain accumulates for more than 72 hours, the ease of cleaning is exponentially higher – the protein residue needs to be oxidized with an enzymatic solution (e.g., Zyme Cleaner), the individual cost is now $2, and the decontamination rate is a paltry 78%. In 2022, Canadian user C got black mold (4cm²) inside the inner wall of his mouth as he did not clean in time, and the repairing cost was $200.
Legal and safety requirements: Under the EU REACH regulation, the volatile organic compounds (VOC) content of cleaners is required to be less than 0.1%, and 23% of cheap cleaners on the shelves are withdrawn due to excessive amounts of formaldehyde (0.15%). In 2023, DollCare, a company in Germany, was sentenced to pay for medical expenses and emotional damage of 80,000 euros due to utilizing non-certified disinfectant and resulting in skin allergy (incidence 1.2%).
Technology innovation case: In 2024, RealBotix launched the “Self-cleaning mouth module”, which integrates nano silver coating (99% bacteriostatic rate) and microfluidic channel (0.2ml/s flow rate), users only need to inject water to complete 90% of the cleaning, maintenance cost reduced to $5 a year, but module upgrade fee up to $300. The sector anticipates that photocatalytic self-cleaning technologies, such as TiO₂ coatings, can reduce cleaning frequency by 50% by 2026, pushing the hygiene management of the rpsexdoll into the age of intelligence.