We all need to be able to breathe! Ventilation is extremely important in any work environment, and never more so than in an industrial setting. Ventilation may be provided naturally by opening doors and windows, but in an environment where air may be contaminated by fumes and vapours, dust or chemicals, relying on what can be highly unreliable and variable natural ventilation is neither legal nor desirable. It is often necessary to install industrial extractor fans in workplaces, workshops, factories and warehouses. This will ensure a healthy, clean airflow throughout the space and ensure that products are in a good environment, and people working there are able to breathe. But when buying industrial extractor fans, where should you start? What should you consider when decided which fan to purchase?
– What is the fan for?
First of all it is important to consider what the fan will be used for, and where it will go. Is the fan for general ventilation, to help with the air flow, or is it to be used to remove noxious fumes or hot air created by certain machinery or equipment, for example in a manufacturing process or a busy kitchen? It is important to purchase the correct fan for the job and also to position the fan correctly.
– Rate of ventilation:
The rate of ventilation is basically speaking the number of times that the air in a room or space is completely refreshed. It is usually expressed as ‘air changes per hour’. How many air changes per hour are required will depend on the application. For example, while a commercial kitchen will usually require over 30 air changes per hour, a store or warehouse may only require 3-6. It is important that you know what rate of ventilation you need so that you can get the fan appropriate to your need.
– Size of fan:
The size of fan needed obviously depends on the size of the room/space it is to serve, as well as the air changes per hour required. A simple rule of thumb is to use the formula: Fan volume (m3/hr) = Length of room(m) x Width of room(m) x Height of room(m) x air changes per hour. This formula will give you the fan volume required. You should always select a fan that exceeds this minimum requirement.
– Reliability and good design:
Finally, it is important to select industrial extractor fans which have been made by sellers who maintain high standards of design and manufacture. You want to select a fan that will last, will not constantly break down, be inefficient or faulty. Do your research, and look at customer reviews.
It only remains to say that you must always ensure that you meet the legal requirements for your location and industry. Make sure you think about all of the above when buying industrial extractor fans.