Archive for September, 2009

Winter is Coming…

September 30th, 2009

The temperature has dropped quite a bit recently and many people in the area are turning on their furnaces for the first time in months. Did you notice what that initial blast smelled like?

Summer can be very humid here in Southern Ontario.  Basements in particular need to be looked after in the summertime. You absolutely need a dehumidifier to control moisture levels, as mould, once germinated, is tough to contain. I watched my father’s house for a couple of weeks this summer and marveled at how much water came out of his basement daily.  Even on a moderate setting, the machine removed about 2-3 litres of water a day.

This had the noticeable impact of making the basement smell better. Personally, I can’t stand descending into the depths of home to be greeted by that stuffy, musty smell that signifies the presence of mould.  As I’ve said many times before on this blog, mould is a serious concern that must be dealt with immediately.

If you notice that smell coming from the registers it’s definitely time to get your ducts cleaned.  The spores are, for the most part, trapped on the surface of the debris in there.  The air that comes out after the cleaning will be of markedly better quality.

Anyway, this post is just to let you know that if you’ve ever thought about getting your ducts cleaned fall is the best time to do it.  Don’t let yourself suffer unnecessarily any longer, and give yourself the gift of clean air.

Duct Cleaning: The Top 5 FAQs About Duct Cleaning

September 24th, 2009

Most people have a few questions when we come up to the house to clean their ducts.  While we can’t address all of them in this article, there are a few that pop up again and again.  If you’re thinking about getting your ducts cleaned then have a quick look over this article to see if your concerns are answered.

Question #1 – How often should I have my ducts cleaned?

There is no standard answer to this one, as there are many factors involved.  If you have pets, have a lot of people in the home, smoke, or tend to sweep dust and debris into the registers or vents then more frequently is recommended, perhaps once every couple of years. You should also consider more frequent duct cleaning if you have respiratory problems such as allergies or bronchitis as it will ease your symptoms.  If not, then every 4 years should do.  It really depends on what’s in your house as well as how sensitive you are to bad air.

Question #2 - What size of vacuum do you use?

This one is a little misdirected. The size of the vacuum is not what’s important, it’s how much air it can move.  You want a vacuum that moves not less than 2000cfm (cubic feet per minute) as some pieces of debris can take quite a bit to get moving. This has nothing to do with size, as newer machines will be smaller than older ones, and may have increased power despite decreased size.

Question #3 - How long will it take to clean my ducts?

This really depends on how big your house is. If your home is under 3000 square feet we generally will be out of there in under 2 hours.  Bigger homes will obviously require more time, and house design will also factor in, as some houses have more ductwork than others. Also, preparation by the homeowner is another thing to consider, as we need all registers and vents exposed, as well as 2 feet around the furnace. If we have clear away furniture and other items to get at it we will be there longer, obviously.

Question #4 – Is it loud?

Not inside. Ouside is a bit of a different story, and while I wouldn’t say it is very loud, there is a reason why we don’t clean ducts too early in the morning.

Question #5 – Why is your price different from [another duct cleaning company]?

We decided to price our duct cleaning services the way we do to make it affordable to people in smaller homes or people who may have slightly lower incomes than the average customer. The typical duct cleaning customer has middle class income or above, and there is a whole segment of the market that has been priced out by traditional fee structures. The way we have it set up, you pay for however many registers you have, so there will be a bundle of savings for people who normally wouldn’t consider having their ducts cleaned.

Duct Cleaning: 5 Reasons Why You Need Your Ducts Cleaned

September 23rd, 2009

Alright, after a bunch of serious posts how about a little humour?  Let’s begin…

For most people duct cleaning has probably the same urgency as cleaning the gutters.  But this is one project that’s better done early.

Why you say?  I thought you’d never ask.  Really.  Nobody gives a hoot about duct cleaning….but since you’ve read this far, here are the top 5 reasons why you need your ducts cleaned:

5. You’ll be more comfortable. If your ducts are clogged air is delivered at a much slower rate. And some of the ducts out there are super clogged – like those pictures of a cross section of imminent heart attack patients arteries.  In most homes, the bedrooms are on the top floor, and can be a lot hotter than the main floor, where the thermostat is usually located.  If you want a quick temperature change, you need clean ducts.

4. You’ll sleep better. All that junk in your ducts is constantly being blown down your throat…like your house is giving you a giant Dutch oven all night, every night.  Now, you might not feel bad enough to do anything about it, and maybe that’s normal, but do you understand what it could feel like? It’s like waking up on the forest floor on a warm summer morning after having lain with nymphs all night long.

3. You’re under attack. Do you know what lives in there? Dust mites (yeah that’s right, no matter what you’ve heard they’re in there) and mould, that’s what.  The mites are one of the leading causes of allergies, and mould is a killer.  Seriously…just search Google for “black mould”.  So stop getting lung raped every time you take a breath.

2. You’ll save money. Remember those clogged ducts from point 5? Well there are a few other side effects too. Slower air flow means the system is on longer, and hence more energy is used.  Also, the harder the system has to work, the more prone it will be to break down.  So in a sense, it’s kind of like insurance.

1. You’ll stay healthy. You want to see your grand kids grow up right? Air is the thing we consume most, and as such has an enormous impact on our health.  By ensuring you supply is as clean as can be not only will you see them grow up, you’ll be able backhand their punk boyfriends when they get out of line.

Ready to get the party started?  Call Merola Duct Cleaning at (705)737-4242.

Simple Things You Can Do to Improve Your Indoor Air Quality

September 22nd, 2009

The main thrust of this blog is to educate people on how to keep their indoor environment as clean as possible.  For the most part, we advocate a 2 step system; get your ducts cleaned and get an air purifier. These are good steps, but there are others you can do as well.

First, you must keep the humidity in the house under 50%. I’ve mentioned this a couple of times before, but it is imperative. At this concentration it is dry enough to prevent spores from germinating, but also wet enough that you don’t wake up with a sore throat and a bloody nose.  The easiest way to do this is to get a portable dehumidifier and put it in the basement.

Another thing you can do is to minimize soft surfaces in the home. Over the years your carpets, drapes, and upholstery slowly but surely accumulate dust, dust mites, and all sorts of other things that make the home feel stuffy. First get rid of the carpets. These are usually the worst offenders, as they cover the greatest area and also release whatever they hold when people kick them up.  Drapes are of less concern, and couches…well, I’m not really a fan of leather but it is the best surface for cleaning purposes.

An article I read today brought up a point I’d never heard, but it seems to make sense. Apparently masonry products offer a high degree of protection against indoor mould problems.  Now, there aren’t too many people out there who would choose to have interior walls made of bricks, but if you kept the walls in the basement cement it may have a beneficial effect on the indoor air in your home.

Lastly, make sure any water from your roof is properly channeled away from your home, as a wet foundation in perfect for all sorts of little creatures to build colonies. This also includes making sure the ground around your home slopes away from it.

That’s about it for now. Not all of these things are easy or cheap, but health is something most people don’t think about until it’s too late. You never really can do too much to protect what you have, in terms of improving the environment in which you live.

Ozone Generators: Are They a Good Way to Purify the Air?

September 16th, 2009

If people have heard of ozone, it usually has something do to with that hole over one of the poles, or something like that.  And while atmospheric ozone does prevent us all from getting crispier when we go outside, ground level ozone is a serious concern.

Ya’ll ready for some chemistry? I knew you were. Anyway, ozone is an incredibly strong oxidizer, meaning it craves electrons like junkies crave smack, and will take them from whatever it bumps into.  That may not sound like much, but sharing electrons is how molecules are made, and once those electrons are gone, so is whatever was using them before – be it viruses, bacteria, mould, etc…This makes it a very effective cleansing agent, and it is promoted as such.

The Structure of Ozone

The Structure of Ozone

Source: http://www.lenntech.com/ozone/ozone-properties.htm

The problem is that ozone is also very stable.  It has a half life of 12 hours, meaning whatever concentration you start out with you’ll have half left 12 hours later, and half of that in 12 more hours and so on until it eventually peters out.

During that time it is very likely to make it down your throat and wreak havoc there and your nose and lungs, and is one reason why it’s classified as a pollutant at ground level.  Yet ozone generators have been available for years as a way to purify the air in your home. Here’s what Health Canada has to say about ozone:

A risk evaluation by Health Canada on ozone generators in January 1999, concluded that ozone generators pose a risk to the health and safety of the public. The direct and purposeful introduction of ozone into occupied indoor environments is unacceptable and therefore should be avoided. Health Canada is concerned with the adverse health effects that may result from the deliberate exposure of the public to ozone from air cleaners that intentionally generate ozone gas (ozone generators). Ozone is an irritant gas that can cause coughs, chest discomfort, and irritation of the nose, throat, and trachea. Health Canada has received complaints from consumers of respiratory problems when using an ozone generator.

Source: http://www.hc-sc.gc.ca/cps-spc/house-domes/electron/cleaners-air-purificateurs-eng.php

There’s no one out there who doesn’t want to live in a clean environment, but this is not the way to go. Ozone does smell nice, but it will attack your internal membranes.  Meaning you won’t smell anything after a while…ever.  Not to mention that in ozone generators there is no filtration, so particles settle out of the air only to be kicked up again the next time you walk over them.

What you need is an air purifier with physical and chemical filtration.  And you need your ducts cleaned. No matter what you do to clean the air in your home if your ducts are filthy it will still be that old crappy air coming out the next time the furnace is on.

So call us.

Why You Need to Take Control of Your Environment

September 15th, 2009

There was an interesting story on an air purifier blog about pesticide use and it’s effects on humans.  The post details about the practice of crop dusting and how it can go awry.  People living near areas where dusting is heavy report respiratory problems, dead fish floating in streams beside fields, etc…  Yet “authorities” maintain that if done properly there are very little risks.

It then goes on to say this:

So who is right? Research continues to be done to determine if these chemicals are really at the root of many of the occurrences that people report, but there seems to be no definitive answer that all can agree on.

So let me get this straight…a chemical thats designed to kill insects (whose life processes and needs are not so far from our own) that is sprayed from a plane needs more research to determine if it’s the cause of health problems as postulated by the locals.  Kinda makes you wonder doesn’t it?

Obviously this will not be regulated by the government.  Chemical companies are far to big to have their interests challenged, much less regulated or (gasp!) banned. And while you can make the case that we need these pesticides to maintain production levels, thats not what this piece is about.

The fact is that we are exposed to chemicals all the time…and we need to get rid of them, because they will NOT be regulated for us.  That article goes on to recommend a HEPA filter to rid your home of the noxious gases, but in fact that won’t fully cover the problem.  You see, insecticide dust goes as small as 0.1 microns (remember HEPA filters only go down to 0.3 microns) and if it is truly atomized much smaller than that.  And there are lots of other things that are too small to be caught by filters as well.

So what can you do?  While the HEPA filter is a great start, more protection is needed.  What is needed are a few other steps to make sure the chemicals are eliminated.  The most reliable and common practice is the use of a photocatalyst along with a UV light.  Just so we’re clear, “photocatalyst” means “breaks with light” as in light shines upon it and it breaks stuff that passes through it.  Hopefully that’s not too complicated.

Here’s how it works.  First, the air is drawn into the chamber where it is pre-filtered and then HEPA filtered to remove the particles in the air.  Then it should go through a carbon filter to trap organic gases (organic mean carbon based, and covers pretty much all chemicals found in the home) then a photocatalyst.  The photocatalyst is made of titanium dioxide, and when light strikes it it release hydroxl (OH-) and superoxide (O2-) atoms.  Sorry for the lack of sub- and superscripts.  These atoms are extremely reactive and cleave organic bonds, so whatever chemcials make it this far are instaneously destroyed.  And if a few manage to sqeak through the UV light has the exact same effect, it breaks organic bonds.  This is why sunlight is one of the most powerful sterilizers.

Anyway, the point of this is that to truly have clean air in the home you need a purfier that has the required stages to filter the air.  Physical filters are good, but there also needs to be chemical ones.

So call us at (705)737-4242 to get your hands on one of the best in the business.

So What is a HEPA Filter? Why Do I Need One?

September 10th, 2009

Keeping on our mission for clean indoor air, today we’ll be discussing HEPA filters.  HEPA stands for High Efficiency Particulate Air and means that it is very effective at removing particles from the air.

This is important because we spend 90% of our time indoors, and the things that will hurt us most can not be seen with the naked eye and will not be taken out of circulation by a regular furnace filter. The human eye can see down to around 40 microns (with human hair being around 70-150 microns in width) meaning you can see the biggest particles that are floating around in your air.

Below 40 microns, we have things like animal dander, bacteria, dust mites and their waste, spores (though some can be seen), smoke, insecticide residues, etc… Looking over that list it’s clear that they are the real threats to your health, not those random fibres you see floating through the air as the sun shines in the window.

While I’m not sure of the precise size that furnace filters can remove, they don’t remove anything microscopic.  A standard quality HEPA filter will reomve 99% of pollutants down to 0.3 microns in size – at a certain flow rate. Not 10 minutes ago I was on a site that sold HEPA filters for furnaces that had the specs for the furnace  flow rate (1200-2500 cubic feet per minute) and the HEPA filter (efficiency rating was rated at a mximum of 500 cubic feet per minute).  Do people realize this??

It’s dust mites, mould, and chemicals that pose the biggest threat in indoor air.  Only a HEPA filter will take out the biologicals – and only then at a certain flow rate.  Which is why you need an air purifier, as furnace filters just don’t cut it.

Hmmm…I din’t intent this to be a air purifier note…but it’s turned out to be.  Leave a comment if you want to know about those.