CO2 as it is used in building ventilation control is not a contaminant with a specific danger threshold not to be exceeded. Rather, it is an indicator of the outside air dilution rate of a space where the outside CO2 levels provide a baseline reference for outside air. Indoors CO2 levels will increase beyond this…
DetailsCarbon dioxide, also called CO2, is a colorless, odorless gas. You may have also seen carbon dioxide in its solid form through dry ice. As CO2 heats up, it goes right from solid to gas, so you can’t see liquid carbon dioxide. Carbon dioxide (CO2) is a greenhouse gas. This means that it causes an…
DetailsParticle pollution — also called particulate matter (PM) — is made up of particles (tiny pieces) of solids or liquids that are in the air. These particles may include dust, dirt, soot, smoke, drops of liquid. Some particles are big enough (or appear dark enough) to see — for example, you can often see smoke…
DetailsCondensation is what happens when water vapour changes from a gaseous to a liquid state. Condensation occurs when warmer moist air comes in contact with cold surfaces such as framing members, windows and other accessories, or the colder region within the insulation envelope (if moisture has penetrated the vapour retarder). Warm air, having the ability…
DetailsA cleanroom is an engineered space, which maintains a very low concentration of airborne particulates. It is well isolated, well-controlled from contamination, and actively cleansed. Cleanrooms are an important part of any laboratory — compared to the ambient outdoor air in urban areas, which contain 35 million particles per cubic meter, cleanroom environments offer just…
DetailsHumidity is the amount of water vapour in the atmosphere. Water vapour enters the atmosphere by evaporating from large bodies of water on the Earth’s surface such as lakes, oceans and seas. There are several ways to measure Humidity, but it is most often measured in terms of Absolute Humidity (AH), Relative Humidity (RH) and…
DetailsGreenhouses are indoor horticulture facilities that are optimized for growing certain crops. During flowering stage, high-wattage lights are needed which produce a significant amount of waste heat. Plants are watered frequently, and the soil medium is moist, so the heat from lights causes water to evaporate. Plants also naturally transpire. Consequently, the amount of…
DetailsOctober 8th, 2021 Greystone Energy Systems Inc – A Message to our Customers and Suppliers – Bemsiq Acquisition Dear Valued Partner, It is my great pleasure to inform you that on September 29th, 2021, Greystone Energy Systems Inc. and our international subsidiaries were acquired by Bemsiq. Bemsiq is a wholly-owned subsidiary of Investment AB Latour…
DetailsMarch 1, 2021 Dear Valued Customer, It was one year ago in March 2020 that we issued our first COVID-19 update. And what a year it has been! During the last twelve months we have all learned how to manage our respective businesses in the midst of a Global Pandemic. For us here at Greystone…
DetailsMay 14, 2020 Dear Valued Customer, First of all, let me reiterate how much we appreciate your continued support as we work our way through the challenges of our new reality. We are moving into a new phase here at Greystone. We have lived with Covid-19 for some time and we have operated under a…
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