PURAFIL Positive Pressurization Unit (PPU) is an independently operating air purification system that protects sensitive computers or electronic equipment from corrosion. The system can be used alone or in combination with the PURAFIL CAS (Corrosive Air System). Typical areas of application for the PPU are computer rooms, control rooms and industrial sites where electrical and/or electronic equipment is installed, such as paper mills, refineries, the steel processing industry, laboratories, etc.

Corrosion-free ambient air

PURAFIL PPU generates a slight overpressure of filtered air - free of harmful gases - in a closed environment and thus achieves a degree of air purity defined by the ISA standard. This standard corresponds to the environmental requirements of the warranty conditions of most computer and electronic parts manufacturers.

Independent air circulation system

PURAFIL PPU generates a continuous overpressure in the area to be protected. Up to 50% of the PPU's airflow can be used by bringing in outside air and 50% or more can be used in recirculation mode. PURAFIL PPU is designed to be installed inside a room and comes with a fan, particulate and gas filter, air quality measurement, differential pressure gauge and adjustable damper.