Climate by Design International (CDI) applies, designs and manufactures critical process rooftop air handlers and desiccant based condensation control units; unit casings construction options include wipe down or wash down duty with drain pans throughout the unit. CDI's optional patented NTM (NoThruMetal) design casing can meet the demands of low temperature environments without condensing. CDI units can be fully integrated, turn-key units with the following options: PLC controls, surge drums for ammonia coils, remote control stations, full halocarbon refrigeration systems using air or water cooled condensers and UVGI lighting.