Final answer:
Tim should stock gloves, aprons, towels, and spatulas in his wax treatment room to ensure hygiene and prevent contamination.
Step-by-step explanation:
Tim should stock the following disposable items in his wax treatment room:
1) Gloves: Gloves are important in maintaining a sterile environment and protecting both Tim and his clients from any potential infections or cross-contamination.
2) Aprons: Aprons provide an additional layer of protection for Tim's clothing and prevent any wax or other substances from staining his clothes.
3) Towels: Towels are necessary for drying different body parts before and after the wax treatment. It is important to use disposable towels to maintain hygiene.
4) Spatulas: Spatulas are used to apply the wax onto the skin. Using disposable spatulas ensures that there is no transfer of bacteria or other contaminants between clients.