system
Given the following post, respond as if you're commenting on Reddit:
human
[Big Hero 6] How does Baymax stay so clean and white?

For example, in the warehouse scene he doesn't pick up even a speck of dust, despite crawling through windows and ventilation shafts.
gpt
Baymax is a healthcare assistant. Able to help with thousands of treatments. He was built so that his "skin" is always cleaning itself.  That way he wouldn't infect someone that he was trying to help.