When you think about indoor air quality problems for your commercial facility, your mind probably goes directly to contaminants circulating through the ventilation system or various indoor pollutants. But one of the biggest issues for commercial indoor air quality is negative air pressure.
The simple definition of negative air pressure is that it’s when the air pressure inside the building is lower than the pressure outside the building. This often happens in commercial and industrial facilities because of over insulation designed to improve energy efficiency. If not enough outdoor air can enter because of the strong heat-sealing, the indoor pressure will be lower than the outside. Negative air pressure can also happen because of poorly constructed or damaged ventilation systems or malfunctioning equipment that draws on too much air inside the space.
The task of providing cooling for a commercial facility is complicated. There are many more types of HVAC systems for commercial cooling than for residential. Residential homes favor the simple split system with an outdoor condenser and indoor evaporator with a blower and network of ducts. The wide range of types of businesses with their different needs requires a similar variety of commercial AC systems. 
Geothermal energy offers special advantages for heating and cooling commercial facilities. These systems remove boilers and cooling towers from the conventional HVAC set-up for a building and instead use the thermal energy of the earth—a renewable resource and one that allows for high levels of energy efficiency.
If your facility is like most modern ones, it uses packaged rooftop AC units to provide it with cooling. For a small retail business, you might only need a single unit to meet your needs. Larger companies may use many of these modular units to deliver the proper climate control within the building. 
Building automation systems (BAS) are common among both new buildings and retrofitted older buildings. You’ve probably already heard plenty about how much a facility can benefit from having a building automation system installed. But you may have felt hesitant about making the leap to retrofitting your facility with something so extensive. Is this change worth it? Does it make an important difference in commercial energy management?
Relative humidity during the summers in Toronto is often extreme. The July daily average is 82% relative humidity, which is 22% higher than what’s already considered high humidity. The increase in moisture in the air is a cause of discomfort on hot days, but high humidity is also a major concern for commercial buildings. Not only do commercial facilities need to worry about comfort levels indoors, they also have concerns about the damage high moisture levels can do to equipment and property and how it can affect process.
Air conditioning for commercial facilities takes many forms: it’s not just about providing comfort to the people inside the building, and in many cases its main purpose is to protect equipment from overheating. 
Building Automation Systems (BAS) are both the present and the future of energy management for commercial and industrial facilities. Using building automation gives you new tools for handling different systems in your facility, including heating, cooling, ventilation, security, and electrical systems. The increasing complexity of these systems makes it necessary to have automation to oversee them effectively. Customized 
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