The Environmental Enclosure 8535 is designed to safeguard the DustTrak II and DRX Aerosol Monitor Models 8530, 8530EP, 8533, and 8533EP in challenging environments. It enables accurate and precise measurements regardless of conditions, featuring an omni-directional sampling inlet with an extended rain cap for all-weather reliability and protection against moisture damage. The enclosure can be mounted on a survey tripod for stability, precise positioning, and hands-free operation. Additionally, it offers optional accessories for customizable solutions to meet specific monitoring needs. This enclosure is included on the pre-approved list of instruments for Rule 1466 by the South Coast AQMD and has multiple applications, including air quality monitoring for regulatory compliance, health and safety in industrial and construction settings, urban planning, scientific research, and environmental impact assessments. It is also suitable for vehicle emission testing and emergency response during environmental crises, as well as portable air quality studies and surveys.