Fresh Air Inlets

For stable and high velocity ventilation

Big Dutchman air inlet systems are designed for efficient circulation and ventilation within layer houses. Depending on structural conditions and special requirements, systems for negative pressure ventilation can be implemented using fresh air inlets for installation into the wall or ceiling.

Important Advantages

  • Very versatile and guarantee an optimum, non-centralized fresh air supply for negative pressure ventilation
  • Inlets can be opened individually, creating stable air jets, even with minimum ventilation
  • Insulated inlet flap seals the house airtight
  • Pulling mechanism allows exact control of the inlet opening
  • Exact control allows stable circulation, maintains an even temperature and creates low heating requirements
  • Made of high quality materials for a long service life
  • High pressure cleaners can be used without concern


The sensible solution for cage house ventilation

  • Back-to-back air inlets above cage rows provide even air distribution throughout the house, allowing for better temperature management
  • Good air distribution improves feed conversions and productivity, while reducing mortality
  • Back-to-back inlets allow for 18″ or 24″ openings
  • Insulated galvanized inlet doors
  • Easy to adjust and install

CL 1200

Multi-purpose wall inlet

CL 1911

Flange wall inlet for sandwich panels with high air rate

CL 2400

Wall inlet available in a variety of sizes, can be utilized for different structural requirements and air rates


View and download the latest fresh air supply systems and Slot-AIRE product brochures.

Related Products

Fresh Air Chimneys

Big Dutchman fresh air chimneys can be used for negative and balanced pressure ventilation, distributing fresh air from the roof into the house.


RainMaker is a pad cooling system characterized by its minimum installation requirements and is designed for simple supervision and maintenance.

DOL 53

DOL 53 permanently monitors the ammonia concentration in the house air, thus permitting the house climate to be controlled based on the sensor’s measurements.

Get Started on Your Project

Over the course of 80 years we have designed, tested, developed, and refined egg production equipment to meet every imaginable need. Get in touch with our sales team to discuss your farm requirements today.