Butlr, an MIT Media Lab spinout specialising in physical AI and anonymous occupancy sensing, has introduced a new Smart Cleaning module designed to help commercial offices align restroom maintenance with actual usage patterns while protecting occupant privacy.
The new module expands Butlr’s spatial intelligence platform by using thermal body heat sensing and machine learning to provide anonymised insights into how spaces are used. Unlike camera-based systems, the technology is designed to infer occupancy and human activity without capturing personally identifiable information.
The technology works by placing thermal sensors outside restroom entrances, where they record foot traffic and occupancy data. The Smart Cleaning module combines occupancy data with information on restroom door activity to help facilities teams determine when cleaning is required rather than following predetermined schedules.
An optional touch module installed inside the restroom allows cleaning staff to confirm maintenance has been completed. The information is then fed into Butlr’s dashboard, giving facilities managers a single view of usage patterns and completed cleaning activities. The data can also be used to identify longer-term trends, helping building operators optimise cleaning schedules, deploy staff more efficiently, reduce supply consumption, and improve overall building operations.
According to Butlr, customers using the Smart Cleaning module have reported average savings of around $1,400 per restroom a year by optimising cleaning and maintenance activities based on actual demand.
The company also cited findings from a Wakefield Research survey commissioned by Butlr, indicating that many workplace operators continue to depend on fixed maintenance schedules. The survey found that 66% of facilities managers clean all areas with the same frequency regardless of occupancy, while 24% of unoccupied office space continues to be heated and cooled. Additionally, 60% of respondents said improved data on cleaning costs could help deliver measurable savings.
Commenting on the launch, Honghao Deng, CEO and co-founder of Butlr, said restroom maintenance has traditionally presented operational challenges due to privacy concerns, leading facilities teams to clean some spaces unnecessarily, while others may require more immediate attention. He said the Smart Cleaning technology enables building operators to replace assumption-based decisions with occupancy data while maintaining user anonymity.
The Smart Cleaning module is now available as part of Butlr’s spatial intelligence platform for commercial workplaces.
