Their operating principle is based on air extraction and filtration. Here’s how it works in detail:
1. Air Extraction: The hood has a ventilation system that draws in contaminated air generated during cooking. This includes fumes, vapors, grease, and other suspended particles.
2. Filtration: Once drawn in, the air passes through various types of filters. Mechanical filters (or grease filters) trap grease particles, preventing them from entering the ventilation ducts. In some advanced models, the air may also pass through activated carbon filters to eliminate odors, and HEPA filters to remove finer particles.
3. Exhaust or Recirculation: The filtered air can be expelled outdoors through a system of air ducts, or recirculated indoors once purified. The choice between exhaust and recirculation depends on the kitchen design and local regulations.
4. Fan: A powerful fan ensures effective air movement through the system. The fan speed can be adjusted according to the amount of fumes and vapors generated during different cooking phases.
Keeping air ducts clean is crucial for several reasons:
• Fire Safety: Grease deposits in the ducts can pose a serious fire hazard. Grease particles are highly flammable and can ignite if exposed to a high heat source.
• System Efficiency: Blocked or dirty ducts reduce the ventilation system’s efficiency. This can lead to lower extraction capacity, causing fumes and vapors to build up in the work environment, which in turn can negatively affect workers’ health and air quality.
• Equipment Lifespan: Dirt and grease deposits can damage hood and ventilation system components, reducing their lifespan and increasing maintenance and replacement costs.
• Regulatory Compliance: Industrial kitchen ventilation systems must be regularly cleaned and maintained to meet safety and health standards.
• Air Quality: A clean ventilation system ensures that air is adequately filtered and free of contaminants, improving the work environment and preventing health issues among staff.
Vesta Solutions Sagl handles your hood maintenance, ensuring a safe and comfortable work environment while also adhering to safety and health regulations. Regular cleaning of air ducts is a
fundamental part of this maintenance, protecting against fire risks, improving system efficiency, and extending equipment life.
