Considering that office fixtures are cleaned everyday using cleaning tools, the present study was designed to provide a standard of hygiene maintenance when the tools are used. The ATP values on the table and tools were measured after the 10 mg contamination source was wiped by the tools. The measurements were repeated for four to seven times. The results showed that ATP values on the table progressively increased with wiping times. Based on the results, possible wiping times and wiping area was estimated for each tool. The tools were dried for 9 to 24 hours after washed by water or detergent. The ATP value, water content of the tools, number of viable bacteria (NVB), and order level were measured during the drying periods. The required drying periods for each tool were then estimated from change in ATP value and NVB with drying time. The tools contaminated by the specific contamination source were washed by water and detergent, and then dried in the room and the phone-box size booth for 9 hours and 24 hours. The ATP value, NVB, odor level, water content (WC) were measured periodically during drying periods. The results showed that ATP value and NVB decreased with decrease in WC in the case of cotton towel and micro-cloth. Drying periods were predicted for towel and micro-cloth.
