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Found 47 results for the keyword ‘Air Quality’

  • Testing and developing furnace filters

    We visited the development facilities at Cimatec Environmental Engineering in Toronto, Ontario where I actually managed to get into the middle of a 65 foot ducting test system to see just what life looks like when you happen to be a furnace filter. Emanuel Mouratidis showed us how they clean the...
  • Central Vacs -- Indoor or Outdoor exhaust?

    Health officials all recommend that central vacuum systems should exhaust outdoors while most installers do not put in an outdoor exhaust pipe.A few conflicting facts:The cost of piping the exhaust air outdoors is about $75 installed.Central vacs are noisy and a few municipalities have begun to...
  • OVERVIEW: Portable Air Conditioners - single or double ducts?

    All air conditioners have a passage for room air to flow into the unit, flow over the cold side of the compressor coil and return to the room. This both cools the air and condenses some of the moisture out of the room air, which makes the room dryer, more comfortable and easier to cool. Wit...
  • Cleaning Electronic Air Filters

    When clean, electronic air filters are the most efficient furnace filters on the market - according to research at the Canada Mortgage and Housing Corporation. When dirty, they don't filter much at all. When in-between they can give off ozone. If you're a lazy homeowner, they probably won't do m...
  • WHAT IS AN AIR-TO-AIR HEAT EXCHANGER, HRV and ERV?

    Air-change ventilation systems exist that take stale air out and bring fresh air in so as to not rely on cold air drafts for the entry of fresh air to the house. They are simply a box with two fans. In a few of the warm spots of Canada these are legitimate systems on their own. In most of Canada ...
  • What are the options in furnace air filters?

    A minimum filter is designed to protect the furnace fan from large dust balls -- not to protect your health.   ONE INCH FILTERS You can start upgrading from there. One of the best of the 1 inch filters is called Filtrete from 3M. It's an electrostatic filter that becomes charged as the air pas...
  • Just what is Mould anyway?

      SPELLING First, a simple spelling problem. Is it 'mold' or 'mould'. According to the dictionaries, the two are equivalent, with 'mould' being primarily a British variation. But mold is active and dynamic, and dictionaries are slow in comparison. According to the Canada Mortgage and Housing Co...
  • OVERVIEW: Was Urea Formaldehyde (UFFI) foam insulation really a health hazard?

    (updated Sept 2012) Since the early 80's Urea-Formaldehyde Foam Insulation (UFFI) was banned in Canada and the US. The Canadian ban is still in place while it is now legal again to sell Urea-Formaldehyde based foam in the US and Europe. Whether it ever was or still is actually a health problem ...
  • Do I clean my Ducts or Not? -- an overview

    The only research done that I have found on duct cleaning, outside of the duct cleaning companies themselves, has been by the Canada Mortgage and Housing Corporation -- EFFICIENCY OF RESIDENTIAL DUCT CLEANING -- CMHC Project No. : 93-2-001 January 1994.  Basically they found that when the ducts ...
  • Stopping flies and gasses from coming out of my basement floor drain with Dranjer!

    I have had several letters recently about bad smells and even flies coming up out of basement floor drains and sump pump pits. One viewer was quoted hundreds of dollars to break up the entire basement and replace all the sewer lines. The real problem is usually that the trap under the floor has ...