
KTJ Silent Fresh Air Cabinet
Low-noise, vibration-isolated air supply for quiet areas like classrooms.

Engineering project
A vocational schoo…
01 Background
A vocational school with training workshops, teaching buildings and a large canteen. High-pressure cabinets and centrifugal fans extract heavy workshop dust, water-cooled fresh air units improve classroom temperature and humidity, and backward-curved cabinets convey canteen fume. The powerful fans continuously extract dust, the fresh air units bring cooled air to relieve classroom heat, and the backward-curved cabinets meet continuous exhaust needs. Wear-resistant, reliable equipment suits long, high-load vocational operation.
Fresh air, exhaust and fume-extraction equipment configured for classrooms, canteens and activity venues, based on on-site space and operating duty.
Project gallery



02 On-Site Problems
Closed, stuffy classrooms with poor airflow; concentrated canteen fume with odor spread; noise-sensitive campus areas; and some zones needing dust control.
03 Equipment Used

Low-noise, vibration-isolated air supply for quiet areas like classrooms.

Delivers cooled fresh air to relieve stuffiness and stale air.

High pressure for long canteen exhaust duct runs.

04 Our Solution
Zone the equipment by teaching area, canteen and venues, balancing airflow, operating noise and long-term maintenance.
05 Installation Process
Silent cabinets are placed in teaching-plant rooms, fresh-air units on rooftops or platforms, and canteen exhaust cabinets connected to hoods and ducting, all on vibration-isolation bases with zoned ducting for easy service.
06 Results
Continuous fresh air in teaching areas, markedly less stuffiness, smooth canteen exhaust without odor spread, and quiet operation that does not disturb teaching, clearly improving air quality and comfort.