Archive for the ‘air quality’ category

Winter Indoor Air Quality Tips

December 10th, 2009

With the arrival of winter there are some new actions you have to take in order to keep your indoor air as clean as possible.  With newer building codes essentially making homes airtight, there isn’t a lot of circulation in the winter, and the air in your home can become quite dirty.  Here are three tips for better air in your home in the winter.

Houseplants Help Indoor Air

Houseplants Help Indoor Air

1. Get a few indoor plants.  As mentioned in the last post, plants do a lot for people.  This is especially true in winter.  Because of less air circulation there is a buildup of potentially harmful gasses, including carbon dioxide.  Plants filter out a lot of the harmful gases, plus they take out carbon dioxide and add oxygen.  Nothing else in your home will increase your oxygen levels.  That’s an important point, as there are many things out there that will take things out of the air, but only plants put something back in.  Unless you have an oxygen machine or oxygen canisters….but somehow I doubt it.

A humidifer keeps the air moist.

A humidifer keeps the air moist.

2. Use a humidifier. Air can be really dry during the winter, and a lack of moisture can really irritate mucous membranes.  This can lead to a whole range of symptoms, from bloody noses to coughing.  It’s important to keep enough moisture in the air so that it is comfortable.

If you can, get one of those ultrasonic misters.  They’re absolutely great.

Woodstoves decrease indoor air quality.

Woodstoves decrease indoor air quality.

3. Easy on the woodstove action.  Any combustion, either from a woodstove, gas stove, or pellets has a few side effects.  First, all combustion uses oxygen, so you’re lowering the amount of 02 with every fire. Also, there is no such thing as complete combustion so there are a whole range of end products from burning – some are molecules, some are particles.  Neither is good to be breathing.  Not to mention that fires make the air drier.

I know they add a nice touch of ambiance, but try to use them sparingly.  In fact, they’re so bad for air pollution that there is a fire ban on right now in the Puget Sound area – they were affecting outdoor air quality.

So stay healthy this winter by taking care of your indoor air.

Houseplants Improve Air Quality – Here’s How to Take Care of Them

December 2nd, 2009

A yucca plant. Recently there have been many accounts on the benefits of having house plants.  They help by soaking up VOCs, which slowly off gas from a variety consumer products.  Most VOCs are suspected carcinogens, if not already proven so.  Having plants indoors lowers the levels of these chemicals, and hence promotes better health.  But like pets, they are also proven to reduce stress levels.  In addition, they also oxygenate the air – meaning it smells better and will ultimately give a little boost to blood oxygen levels, which does everything from helping you fight off infection better to helping you think quicker.

Clearly, there are many benefits received from having plants.

The sad part is that most people treat plants like furniture.  Though they don’t move, they are a living creature and do require care.  So here are some tips to keep your plants in tip top condition.

1. During summer put you plants outside. I have many monstrous houseplants, and they all ooze vitality.  There is deep green foliage everywhere, without any barren limbs.  People ask me all the time how I get them so lush, and the secret is to put them outside in the summer.

But there is a little more to it than that.  Like humans, plants that aren’t used to the full sun will burn easily after a winter indoors.  So you have to acclimatize them when you first put them out. Different plants have different sun needs, but even a full sun plant should see no more than 1 hour of sun a day in the beginning.  They will get used to it quickly, and after a couple of weeks will be ready.  Just make sure you know what their sun requirements are.  Full shade plants will burn to a crisp quite easily.

Also note that as long as they don’t freeze, they are fine outside.  Even a plant that is found on the equator can handle 2 degrees Celcius overnight.  Please note that while they can handle almost freezing, many plants will die quickly even in a light frost.  So if there is a risk of frost, take them in.

2.  Keep them clean. Many houseplants literally suffocate in dust.  While this won’t be much of a problem if they are outside every summer (and are rained on) they may need a mid-season cleaning.  There are products out there for this, but you have to attend to each leaf individually, plus I think most of us are aware enough to realize that spraying more chemicals on anything is never a good idea. No matter how innocuous the manufacturer claims they might be.

If your plants have dusty leaves simply put them in the shower and then hose them down.  Leave them in there for a while to dry off, then shake them off a bit get rid of excess water.

3. Note how much water they need. Plants are most frequently killer by either too much or too little water.  Note the kind of plant it is.  Ferns, lilies, spider plants, etc… can stand more water than most, but even they should have dry periods.  Tropicals are used to a wet and dry season – in fact, after taking mine in I don’t water them for a couple of months.

Succulents are different.  They store water in their leaves or body, and as such require less water than you might think.  For example, I have a massive jade plant.  It needs watering only when the leaves become soft.  If the leaves are firm, it is topped up and can go without water for some months.  Besides, not watering them triggers their flowering.

So I hope you get some houseplants and take proper care of them, as they will also take care of you.

The 3 Biggest Indoor Air Threats

November 25th, 2009
indoorair

The Airborne Threats Inside Your Home

There is an oft quoted statistic that indoor air is 40-100 times more polluted than outdoor sir in a non smoking house and up 400 times more polluted in a smoking house.  There are also a bunch of disease stats that show how prevalent lung conditions are and how they are increasing.

The point of all this is that your air sucks.  And you should do something about it.

But do you even know what it is that you should be concerned with? What is it exactly that makes indoor air so bad?

First, you have biological contaminants.

Your house is warm, wet enough and has food for a whole bunch of things.  But there are 2 in particular that warrant special mention, and they are responsible for the majority of respiratory conditions.

The first things are dust mites.  These little critters are all over the place, and they feed on the #1 component of household dust – flaked off skin cells.  While they have decent populations on pretty much every surface in the home, they are especially prevalent on soft, upholstered surfaces and things covered in fabric. The number one place being in your bed.

While the mites themselves are bad, it’s actually their feces that cause the problem.  They cause a host of reactions in people, and are the second leading cause of allergies (the first being genetic predisposition). So you have to keep the mite feces out of your air.

More on dust mites – http://healthandenergy.com/dust_mites.htm

Second is mold.

This is nasty stuff, and it gets a foothold when your air is too humid.  Once established it releases microscopic spores into the air, and if you breathe enough of them you can get an exotic fungal infection in your lungs.

That is bad…very, very, bad.  Mold is such a threat that if there is enough of it in your home you are not allowed to remove it on your own – specialists with gear have to be called in.  It’s not something to take lightly.

More on mold – http://www.mouldfacts.ca/

Next, we move on to chemicals.

Even if you don’t smoke there are a bunch of things slowly off gassing a host of potent carcinogens into your homes’ air.

There are a ton of these, so I’ll only go over a couple of the most common.

Formaldehyde is probably the most common. This is embalming fluid, and it is used as a preservative.  With many goods facing long delays between the time they are manufactured and the time they end up in the consumer’s house they have to maintain their “newness” for quite some time.  Enter formaldehyde.  Not only does it preserve a good in its’ freshly made condition, it is a huge deterrent to pests which might otherwise snack on it.

It makes you wonder when even insects are smart enough to steer clear of something.

More on formaldehyde – http://www.arb.ca.gov/research/indoor/formaldehyde.htm

The second are flame retardants.  These are known as PBDEs and are extremely toxic.  If you’ve ever been in a department store and all of a sudden felt nauseous it was due to these.

Now, they are in there for a reason.  I don’t think anyone would choose to have flammable over non flammable goods in their home.  But those flame retardants are slowly wafting throughout your home and into your lungs – and they eventually end up in your body fat.  These are also extremely carcinogenic.

There are many, many others.  But I think you get the point.  There are very high concentrations of chemicals in your home.

More on flame retardants – http://www.cleanandhealthyme.org/BodyofEvidenceReport/TheChemicals/PDBEsToxicFlameRetardants/tabid/97/Default.aspx

The last thing is particles smaller than 2.5 microns.

These could be made up of almost anything – drywall dust, household dust, particles from incomplete combustion, etc… They are dangerous because they have the ability to penetrate deep into the lungs, lodge in there and cause extensive scarring and other problems.

Interestingly, it doesn’t really matter what the particle is made up of – only that it initiates an immune response in the lungs.  Some, like asbestos, are hard to degrade and lead to big problems down the road.  But none of these particles are good for you.

The reaction is similar to have a splinter –redness and swelling, etc…but you can pull these guys out.  So it’s best to avoid them in the first place.

So those are three things that you should watch out for in your indoor air.  It’s time to make sure you are breathing the cleanest air possible.  Because the time to protect your health is when you have it. I’ll resist the urge to spout off a bunch of cliches.

Christmas Air Purifier Sale

November 18th, 2009

If you’ve been following this blog at all you know that should do whatever you can to clean the air in your home.  A significant portion of the things that threaten your health in your home are floating around in the air – chemicals off gassing from household products, and viruses expelled from sick people coughing or sneezing.  A lot of this stuff can affect you before it ever has a chance to go through the ductwork, so the only way to make sure these things don’t impact your health is to filter the air in your home.

Announcing…

The Christmas Air Purifier Blowout Sale

Until Christmas, you can get our apartment sized air purifier on sale for only $499. Make sure the air in your home is safe for your family to breathe. There are a lot of air purifiers out there, but as with most things there is a huge variety of price quality, and features. At Merola, we only carry the best, most advanced air purifiers there are.

The most advanced air purifier on the market the XS04 protects your health in 6 ways –

  • A pre-filter to trap larger particles
  • A HEPA filter that will catch 99% of particles down to 0.3 microns (a human hair at it’s thinnest is about 40 microns)
  • Activated carbon to absorb volatile organic compounds (the chemicals that are wafting throughout your home)
  • A UV light that destroys organic compounds (a chemical/bacteria/virus killer)
  • A photocatalyst that also destroys organic compounds (another virus/chemical/bacteria killer)
  • A source of negative ions to make you feel better and make your air smell fresher

So hurry up and get one while you can.  Call us at 737-4242 or stop by at 570 Bryne Drive in Barrie, Ontario to take advantage of this great deal!

Febreze: Does it Work? How?

November 11th, 2009

Febreze was launched in 1998 as a way to control odours, and was a new way of dealing with them, as air fresheners simply masked scents with perfume.  So is this a good way to go about dealing with less-than-appealing smells within the home?

Let’s take a look…

Background

How cyclodextrin captures odour in Febreze. (click for video)

beta-CD

A molecule of cyclodextrin

Febreze uses cyclodextrins to contain odours.  These are essentially cyclic sugar molecules that look somewhat like donuts.  They have some special properties too;  the outside of the ring is hydrophilic (meaning it loves water) and that makes it soluble in water.  However, the inside is lipophilic (fat loving, the opposite of water loving in terms of solubility) and that means it attracts molecules that won’t dissolve in water.

Cyclodextrins are very widely used to:

  • Remove cholesterol form food
  • Chelate (trap) environmental toxins
  • Chelate fat in diet products
  • Control the release of fragrance (dryer sheets, furniture spraying)
  • Used for controlled drug release

Plus more.  These are very widely used, stable compounds.

The Skinny on Febreze

For a short term cover up, this is actually fine.  For example, if you’re showing your house tomorrow, you might want a quick spray over questionable areas.  Other than that, it’s probably best to stay away.  Here’s why.

The trapping effect of the cyclodextrins only lasts so long.  Sooner or later the bond breaks down (sun, heat, or another energy source) and the offending molecule is released.  It was only bound up for a while.  And the releasing process usually breaks the cyclodextrin down, so it can’t trap another molecule.

Also, that pleasant smell from Febreze will run out.  Sooner or later all the fragrance will be used up, and then whatever you were trying to mask will reappear.   So you have to keep applying it for it to keep working.  This is perfect for Proctor and Gamble, but less than ideal for consumers, because there are chemicals in the mix as well. Cyclodextrins on their own are OK, but I think most would agree that willfully adding to you chemical exposure week in and week out is not a wise idea.

So What Can You Do?

First, keep your humidity down.  Maybe not nose bleed dry, but below 50% relative humidity.  If you have a point source of odour, clean it, repair it, or do whatever you must to get rid of it.

Also, get an air purifier.  These break down chemicals in a safe manner, and make your home smell better to boot.

It may be a little more elbow grease than the odd Febreze spraying, but so much more worth it.

Many thanks to the cyclodextrin definition on Wikipedia for the image,  and to Science in the Box for the cyclodextrin video.

Do Air Fresheners Really Freshen the Air?

October 28th, 2009

As winter starts to come on here in Ontario there is less opportunity to air out your home by opening the window.  In a month or so it will be off limits until sometime in April, most likely.  Indoor air can get pretty stale in the meantime.  Many people will choose one of the two cheaper alternatives to “freshen” their indoor air – air fresheners, or Febreeze.

But are these really good alternatives to get better air?

Let’s look at air fresheners first.  Almost all are made up of varying concentrations of four basic ingredients: formaldehyde, petroleum distillates, p- dichlorobenzene, and aerosol propellants.  Formaldehyde is a known carcinogen and is used as a preservative, in fact, it is embalming fluid.  It is in most manufactured goods these days and is one of the bigger threats to your health, as it can reach significant concentrations in the home from the off-gassing of consumer products.   And that begs the questions: why would anyone knowingly add more?

Next come petroleum distillates.  There are a variety of these found in most air fresheners and are used for a variety of reasons. Some are used for fragrance, others to destroy odours.  But the fact of the matter is that if you wouldn’t recommend people go around sniffing gas (which is a petroleum distillate) you probably shouldn’t use air freshener.  Now, the degree of toxicity will vary per compound, but I think it’s say to say you should avoid breathing volatile organic compounds (VOCs), no matter what they are.

P-dichlorobenzene gets special mention due to its’ ubiquitous use.  It is used to control odour, and while it officially hasn’t been classed as a known carcinogen…it is.  It has been banned in many public workplaces in the states, as it should be, being the bastard offspring off mustard gas and benzene (that’s not how you make it, but if you added those two together, theoretically, you’d get dichlorobenzene). But hey, it controls mold and mildew…not by being extremely toxic though, by talking gently to them and making them see the error of their ways. Seriously though, if it kills those things, what do you think it does to you?

Propellants are basically pressurized gases that force the fragrances out once you release them.  This seems innocuous enough, except that they are usually things like propane, butane, dimethyl ether, and other organic compounds that are carcinogens.  Though they may not be officially recognized as such just yet.

If you know a bit about chemistry you may have noticed some common traits among the chemicals listed.  If not, I’ll point them out here:

  • They are all organic compounds (meaning carbon based)
  • They are all fairly volatile (they vapourize easily)
  • They are all carcinogenic (they all cause cancer)
  • They are lipophilic (they are soluble in fat, not water, and hence are very difficult to excrete)

The last point needs a bit more explanation. Many people are familiar with the term “bio-accumulation,” which means that certain chemicals, once trapped in a living body, simply move up the food chain as one organism eats the one below it.  This is because any particular animal in the chain can’t get rid of it, and hence just stores it in its’ fat. That means these chemicals are lipophilic.  Continuing on, all that air freshener you’ve smelled over the years is stored somewhere in you.

Now that we’ve gone over this, would you use one in your home?

If your home has odour problems, you have to find out the root cause and address it.  While this may be considerably more expensive upfront, it will be dwarfed by medical costs and decreased quality of life later on. There truly are no quick fix magic bullets.

Can Poor Air Quality Lead to Appendicitis?

October 6th, 2009

A study by the Canadian Medical Association Journal came to the conclusion that there is correlation between ground level ozone concentrations and appendicitis.

In case you don’t know, appendicitis was largely unknown until the turn of the 20th century, when industrialization got going in earnest.  The predominant theory of why they burst is related to blockage – sooner or later something is going to inadvertently fall in there and cause it rupture.  That theory makes about as much sense as the one that says the appendix is a useless, vestigial organ. While its’ purpose may not be definitively known just yet, it seems like common sense that just because we don’t know what is doesn’t mean we everything about it.

Anyway, rates leveled off and started to fall about 50 years ago, corresponding to the time when the first air quality guidelines were enacted.

Clearly there is more to the picture than ozone levels.  But the question raised suggest that there are many as yet undiscovered relationships between the environment and our health, and just because something isn’t officially recognized doesn’t mean we shouldn’t consider it.

For a more complete synopsis please refer to this post on the story.

The original study can be found at the CMAJ website.

The Top 5 Reasons Why You Need Your Ducts Cleaned Now

October 1st, 2009

Still putting off cleaning your ducts? Here are a few more reasons why you need to get on the ball.

Reason 5 – You Gross Your Guests Out

Remember when you were a kid and went over to some new friends’ house and when the door opened you were blasted in the face with noxious gas? And how on every subsequent visit you opened the door, moved aside to let the initial wave blow past you, steeled yourself, and went in? Are you sure that isn’t your house now? Stop making your guests wonder if their relationship with you is worth breathing all that dank air. House stank is never alright.

Reason 4 – You Spend Most of Your Time Indoors

As Canadians, we spend an average of 90% of our time indoors, according to the CMHC. Now that winter is almost upon us again, I’d guess that we spend more than 90% generally. This means that all winter you are breathing whatever air is in your home.  And this may not seem bad, but…

Reason 3 – Your Air is Filthy

The saying is “Out of sight, out of mind”, and that certainly is true of air. Sometimes when the sun is shining brightly through the window you can see some of the bigger particles floating around, but by and large they are innocuous. The other stuff – mould spores, dust mites & their poop, and chemicals are rife in the home. Depending on where you get your estimates from, indoor air is 10-100 times more polluted than outdoor air. So get an air purifier.  Yeah, that’s not really related to ducts, but we sell those too J

Reason 2 – Your Lungs Are Vulnerable

Of all the ways in which foreign objects can enter your body, your lungs present the easiest barrier to entry. They were made to absorb, and they do their job well…perhaps a little too well for the modern environment. There are only cilia and mucous to protect your sensitive alveoli, and if you smoke (even occasionally), your cilia are gone. It’s funny how much fuss people put into safeguarding their food and drink, considering the digestive tract is designed to handle pretty much whatever physical or chemical matter it comes across.  Yet the exact opposite is true of air. People don’t care that much, but your lungs are more susceptible.

Reason 1 – Air is the #1 Thing We Consume

Over the course of the day, you consume roughly 35 pounds of air, far outpacing your consumption of food and drink combined.  Considering how people are so fussy about food it’s unlikely any given trio can’t decide on a kind of pizza to order, don’t you think that same kind of concern should be extended to our biggest consumable? It should, especially given points 2 & 4.

And that’s about that folks.  If you have any ideas for future post topics please let me know.

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.