Transportation systems move millions of passengers and crew members through enclosed environments every day. From buses and trains to cruise ships and passenger vessels, these environments often experience high occupancy, limited ventilation, and constant turnover.
Passengers not only share the same air, but also frequently interact with high-touch surfaces such as seats, railings, tray tables, and door handles. Traditional cleaning methods focus on periodic disinfection, which can leave gaps in coverage between cleanings as contaminants are continuously reintroduced.
This is where the conversation shifts from indoor air quality (IAQ) to a broader focus on indoor environmental quality (IEQ). Addressing only the air or only surfaces is no longer enough. Transportation operators need solutions that continuously treat both.
CASPR Transit provides continuous air and surface pathogen reduction inside transportation environments, helping reduce VOC’s, bacteria, viruses, mold, and odors at the source while vehicles or vessels remain in operation.
Transportation environments require more than periodic cleaning or air-only solutions. The following questions explain how CASPR technology supports a shift to continuous environmental treatment—helping reduce contaminants in both the air and on surfaces throughout the entire space.
CASPR stands for Continuous Air & Surface Pathogen Reduction. Unlike traditional systems that focus only on air, CASPR treats both air and exposed surfaces throughout a transportation environment. Using CASPR’s patented Natural Catalytic Converter Innovation (NC2I) process, the system converts oxygen and humidity into low, safe levels of gaseous hydrogen peroxide molecules that continuously circulate, helping reduce VOC’s, bacteria, viruses, mold, and odors in real time.
Most air purification systems only treat air that passes through the unit. CASPR works throughout the entire environment by dispersing active molecules that reach both the air and high-touch surfaces. This allows for continuous reduction of contaminants rather than isolated or intermittent treatment.
CASPR Transit can be installed in a wide range of environments including public transit buses, school buses, charter buses, airport shuttles, passenger vans, rail cars, ferries, cruise ships, passenger vessels, and other fleet transportation vehicles where shared air and surfaces are present.
Yes. CASPR Transit produces extremely low levels of gaseous hydrogen peroxide, typically between 0.01 and 0.04 parts per million, which is well below OSHA and CARB safety limits for occupied spaces. The system operates safely while passengers, drivers, and crew are present.
While routine cleaning is still important, it is periodic, labor-intensive, and can vary based on time, staffing, and consistency. CASPR addresses these gaps by working continuously between cleanings, helping reduce pathogens in both the air and on surfaces during normal vehicle operation, without relying solely on manual processes.
CASPR technology has demonstrated effectiveness in helping reduce a wide range of microorganisms including VOC’s, bacteria, viruses, mold, fungi, and odor-causing microbes that can accumulate in enclosed transportation environments with high passenger turnover.
CASPR supports a shift from air-only solutions to total environmental quality by continuously reducing airborne contaminants and surface-level microbial buildup. This helps create cleaner, more consistent conditions throughout the entire vehicle.
CASPR Transit systems require minimal maintenance. The NC2I cell and bulb typically need replacement approximately every 18–24 months depending on operating conditions, and the system does not require chemical refills or filter replacements.
CASPR Transit delivers continuous performance by treating both air and surfaces throughout the vehicle environment. Unlike traditional approaches that rely on periodic cleaning, CASPR works continuously to help reduce microbial buildup at its source—supporting cleaner conditions during every ride.
How It Works: Mounted securely inside vehicles, CASPR Transit units work with either AC or DC power systems to generate low levels of gaseous hydrogen peroxide molecules that circulate throughout the cabin, helping reduce contaminants in the air and on high-touch surfaces while the vehicle is occupied and in use.
Mounted in vehicles; AC or DC powered
200–400 sq. ft. per unit (varies based on vehicle size and airflow)
Replace the NC2I bulb and the NC2I cell every 18-24 months
Best For: Public transit systems, EMS ambulances, school bus fleets, prisoner transport vehicles, airport shuttles, ferries, vessels, cruise ships, and any transportation environments where continuous environmental quality is essential.
From public transit systems to school transportation fleets, CASPR technology has delivered measurable results in real-world transportation environments. These implementations demonstrate how continuous air and surface protection can help reduce contaminants, improve rider confidence, and support more consistent day-to-day operations.
During a pilot program conducted on an active passenger rail system, CASPR technology demonstrated a 72% reduction in pathogens within treated train environments.
After CASPR technology was installed across a public transit fleet, 52% of surveyed riders said they were more likely to use transit when the technology was present on vehicles.
A regional public transportation system deployed CASPR technology across 189 buses, demonstrating the ability to scale continuous air and surface protection across an entire fleet to increase public trust, safety and ridership.
A school transportation study found an average 47% reduction in bus driver absenteeism after CASPR technology was installed, helping support staffing reliability and day-to-day route continuity.
Explore the latest insights, research, and real-world applications of CASPR technology in transportation environments. From school buses and transit systems to fleet operations and transportation facilities, these articles highlight how CASPR supports a shift from periodic cleaning to continuous environmental treatment.
Harbor Transit’s fleet now boasts newly-installed CASPR disinfection systems, adding another layer of protection for its passengers and employees. The
In a proactive move to prioritize student and staff safety, the Meriwether County School System in Georgia embarked on a
CASPR is proud to announce its Transit 2.0 solution has been selected as a recipient of the 2023 EMSWorld Innovation
CASPR Transit is used across a wide range of transportation environments where passengers or crew share enclosed air and surfaces, and where continuous environmental quality is critical.
City transit systems that move large numbers of passengers through buses, rail, and metro networks where shared air and surfaces create sanitation challenges.
Student transportation fleets that operate daily with high occupancy and limited time between routes.
Passenger transportation fleets used for tourism, events, and group travel.
Short-distance transportation fleets used in airports, hotels, campuses, and transportation hubs.
Enclosed passenger environments used in maritime transportation where air quality and sanitation are critical.
Transportation vehicles used for specialized passenger or operational transport.
Transportation operators are under increasing pressure to provide cleaner, healthier environments for passengers and crews. Let’s talk about how CASPR can help improve air quality, reduce pathogens and odors across your transportation fleet.
