The Antimicrobials Information Hotline provides answers to questions concerning current antimicrobial issues (disinfectants, fungicides, others) regulated by the pesticide law, rules and regulations. These cover interpretation laws, rules and regulations, and registration and re-registration of antimicrobial chemicals and products. The Hotline also provide information health & safety issues on registered antimicrobial products, product label and the proper and safe use of these antimicrobial products.
On the other hand, if family members are experiencing unusual or unexplained symptoms or illnesses that you think might be related to your home environment, you should discuss the situation with your doctor. EPA has published the following publications for guidance on identifying possible indoor air quality problems and ways to prevent or fix them.
Chemical biocides are regulated by EPA under Federal pesticide law. A product must be registered by EPA for a specific use before it can be legally used for that purpose. The specific use(s) must appear on the pesticide (e.g., biocide) label, along with other important information. It is a violation of federal law to use a pesticide product in any manner inconsistent with the label directions.
WELL, this summer when I opened them up we had black dust spewing from one of the upstairs vents. It resembled the fuzz that comes off new towels. This prompted us to look into duct cleaning. We heard from someone who had it done several times, said it was worthwhile, and knew of a firm that did a good job. Clean Air America sent a single technician for the appointment and after counting registers and ducts gave me a price of $360.00 which included “sanitizing” the system (a $99 additional fee per can used). The small size of the plenum forced him to connect the 8” round vacuum hose from the truck to the 10” square opening from our humidifier unit. In hindsight, a mistake since it reduced the “negative” pressure in the system.
We are all getting migraines several times a month. I have asthma but not ever as bad as it has been and my 2 year olds dr just informed me she potentially has asthma too. We all get sinus infections regularly and eczema and contact dermatitis. None of us have been this way until recently in our apartment. A roof leak with mold was repaired recently mold was sealed off not removed. We also had lead paint removed from a few window trims this year. I wasn’t here to see if they covered the vents. We had mice too. I vacuum everyday we have hardwood floors no one wears shoes past the font door and I’m getting over a cup full of dirt every time I vacuum. Dust on everything daily. White dust. It’s a 4 room apartment with 1 intake. They are filthy from what I can see when I change the filters. The filters are black after a few months. I feel bad to ask the homeowner to get the system cleaned, can’t afford to move (we live in the city & it’s expensive). I am going to try the shop vac to remove what I can. Any experienced hvac people please give your opinion. Should I just get it done and pay for it myself? We have lived here for 13 years. It’s never been cleaned since ive been here. Is it something I can do with a shop vac? Can i use a wet rag to get the powder dust on the inside of the vents off. One vent has what looks like chunks of dry wall or thick paint sitting in the vent and none of the vents screw into the wall, the screws just fall out. No one ever reinforced the area so the wall just basically crumbles. Kind of useless to spend the money on filters since the air and dust just blows out around the sides of the vents and one of the vents just falls right out of the wall when the heat is turned on. I don’t know why the owner doesn’t fix it. He’s been here to replace filters and saw the condition.

The best way to ensure indoor air quality and avoid replacing your A/C system is to clean your ducts. Duct cleaning can be as simple as dusting out the vents or something more in-depth like having a professional look through them. While it sounds daunting, what you gain in keeping them clean is much better than the initial cost. Need help finding a duct cleaning service near you? Enter your zip code to be connected today to local air duct cleaning companies.
Although much of the energy used to power heating and cooling equipment is indeed wasted, that waste is because of inefficient equipment, lousy insulation, leaks around doors and windows, and unsealed ductwork. While there’s some benefit to cleaning and maintaining HVAC equipment, that benefit is relatively small, and little energy waste is attributable to dirty ducts or equipment.
They were ok.  I had another group that came out that was much more thorough.  When I asked them to come out, they've always been good about that.  I make the appointments, all of them.  All of them, I make the appointments.  They were ok.  They cleaned the ducts.  But I've had others come out from Angie's List that have been much more thorough.  It's all on my terms.  Other people came out and they were much more thorough.  I would have given the other people an A.  They didn't take the ducts down.  The other people took the ducts down, they cleaned the vents and the whole bit.  They said that they could just do it like this and it works well.  I thought good, fine whatever.  It was positive that they came out on time.  They were very nice, they did their job, like I said, they weren't as thorough.  They cleaned my vents, but the other people that came out before, they took the vents out, they washed the vents, they cleaned every vent.  Whereas these people came in, they took the vents off and go I can suck all of his through these three vents with one hole.  And I'm sure they were right on that, but the other people did it differently.  I would not use them again because of that.  To make it better, clean out each and every vent and to clean the vents themselves.  The other people came out and they cleaned every vent that was exposed and they would go in and they cleaned out every vent.  Each one was cleaned out, not one vent will clean out three.  That kind of thing. Price was good.  I know you guys charge a fortune.  You take 40% of what they make.  I've learned that from a couple of them.  That's extreme.  They were all fair.  The prices were all fair.  But I felt bad that Angie's List took 40% of what they did because they did all the work and Angie's List took 40% of their profit, or their cost.  Now you're aware of it.  I've had three or four of them say that to me, and they said, well, we're not complaining because they keep us busy, but you know, that's not fair.  That's too much.  Everything's fair.  If I didn't like the price, I wouldn't buy it.  When the other guys came out, they did every single vent and they didn't.  I really don't like the fact of putting somebody down.  That's the way I am.  They did the work, they did what they felt they needed to do.  And it was different than what I've had in the past.  And I have allergies and all that stuff, so I really want all that junk out of there.  But, I wouldn't put them down.
“Ideally, the inside surface will be shiny and bright after cleaning. Duct cleaning may be justifiable to you personally for that very reason: you may not want to have your house air circulated through a duct passage that is not as clean as the rest of the house. However, duct cleaning will not usually change the quality of the air you breathe, nor will it significantly affect airflows or heating costs.”
I bought a Groupon for an air duct cleaning and deodorizing for $59.  I read all of the fine print and it said "unlimited ducts."  When they came to perform the service they said it would cost an additional $200 to cover the entire house.  I ended up canceling the whole service and the guy who was there do to the work said he is leaving the company because of issues like this.  He said 25% of their customers end up canceling when they arrive to do the service because of the dishonest advertising.  Later the same day, the manager called me to discuss why I canceled the service.  I told her the Groupon was dishonest and intentionally misleading and her response was, "I don't work on the advertising."  I told her that as the manager she has some responsibility for what is advertised about the company and she said, "I just work here, I don't own the company."  So apparently the management has no responsibilities at Best Air DC, perhaps that is part of the problem.  I will never use them again and hope no one else does either.  Save your money!
Air ducts for your HVAC are critical for the efficient and effective filtering of microbes from the interior air your family breathes. For this reason, Most people should focus more on the proper cleaning and maintenance of your air ducts at least with equal importance as the filters you buy. I moved into a house built in 2003 last year, and spent a lot of time researching air filters because I realize air pollution inside the house is many times higher than outside, and my health and the health of children and youngers can be so adversely impacted by inhaling these indoor pollutants. I spent a lot of money on the best filters because here in northern Kentucky, I discovered I am allergic to something in the air starting in Spring that made me sick for 10 days - sort of a Upper Respiratory Illness. It never occurred to me the previous owner had never cleaned the air ducts, although he had both very young children, two dogs and a cat. I discovered Best Air Duct Cleaning LLC though an Amazon Local offer. Simon and his co-worker showed up on time with more equipment and materials than necessary, and I am so glad and appreciative they did! Simon explained the entire process in detail and took the time to show me what they were doing, how they were doing it, and the effects. In his initial examination of my air duct system, he discovered dust/residue from when the house was built, such as drywall dust. This was in my air system, and I was shocked. Not only did they thoroughly clean out all traces of this built up layer of contaminants, but showed me "before and after". In addition to completely cleaning the air duct system throughout the house (believe me - the inside of the air ducts looked brand new), they sanitized the entire system and then deodorized it. Halfway through the process, they took my $100+ air filter outside the clean it. I was both angry and amazed at the size of the dust balls on my filter. The air ducts were beyond filthy, and simply having the best air filter did nothing for the coating inside the air ducts. Now you would think after all this education on my part and work on their part, we would be through. No. I had researched by HVAC system and saw electronic air filters for over $1000. That was too much for me. But Simon introduced me to a product which uses ultraviolet light to further clean the air going into my home from the HVAC unit, and he gave me a discount because of the totally thorough cleaning I had purchased. This unit attaches to the duct coming after the air filter and comes with a lifetime warranty. Included in that lifetime warranty is a visit every two years to replace elements of this air cleaner, and a free air duct cleaning. Best Air Duct Cleaning provides air duct cleaning, which includes cleaning all your vents in the house outside your house. They repair and install air ducts and associated materials. They also cleaned my dryer vent, which was also incredibly filthy. Simon and his co-worker are intelligent, extremely knowledgeable and patient in their explanations and education to the consumer, and goodness, they are so friendly. I can't praise them enough for the experience and their industriousness. They take indoor pollution and the potential adverse health effects very seriously. The peace of mind I now have knowing all the filth they removed which was invisible to me is worth ten times the amount I paid. Absolutely wonderful people and company.
To make things even more interesting, I called their number this morning to do some investigation on what they actually do.  After I revealed to the girl I had the service done a day prior and that my technician, Simon, didn't clean them like it should be done she drops a bomb on me.  Simon is actually the owner!!  The whole time, he is telling me that he is on the phone with the office to see if the can get me a better price on the additional cleaning, he is basically full of sh!+.  An owner doesn't need to do that - he is just pulling a bait & switch on me.
I guess I should present my credentials first, I am a 30 year veteran of the heating and cooling industry. I started at the bottom and have participated in every area of the trade. Installer, service, maint. Ownership, rep, territory manager and so on. A forced air duct system is a large vacume. Like your vacume it has an air intake (return air) and an exhaust (supply registers). A filter just like a vacume (located next to furnace or air handler). Now I want you to visualize something. Put your head inside your vacume cleaner and breath. Get the picture? This is what your duct work looks like. Do you clean your vacume when it’s dirty? If it’s full and the filter is dirty you lose performance and it starts poluting the air you breathe. It’s common sense. I recommend hiring a duct cleaning outfit that you have researched to be honest, background checked, drug tested, insured, and highly recommended by your piers in the area. The service is a necessity, but like everything, it should be done by a qualified company.
I noticed a lot of negative feedback, though unfortunately there are many dishonest companies out there. I currently work with a company that cleans duct work and we DO NOT use any scare tactics or up sell services or equipment. Once every 10years of course there are exceptions. We clean supply, returns, air handler, housing, motor, and fan. Though be discerning when qualifying anyone to work in your home. I would ask for REAL REFERENCES to contact.
Washington Consumers’ Checkbook magazine and Checkbook.org is a nonprofit organization with a mission to help consumers get the best service and lowest prices. We are supported by consumers and take no money from the service providers we evaluate. You can access Checkbook’s ratings of local HVAC companies free of charge until Feb. 28 at Checkbook.org/washingtonpost/ducts.
And if you have flex duct and/or fiberglass ductboard in your home- the last thing you want is a big brush or anything abrasive running through it. Even high-pressure air can erode ductboard so I wouldn’t clean it with anything. If it becomes contaminated, get rid of it and install real ductwork. If your ductwork is accessible in the basement – the best thing to do is take it down and manually clean it if it’s full of junk. It’s not going to cost a nickel more to do that than to pay $500-1000 for a ‘duct cleaning machine” AKA big blower and vacuum – to do the job.

He proceeded to clean each heat register by removing the grille and blasting it with an air pressure hose toward the duct opening thinking that the dust would magically be sucked inside. In one room this caused a ceiling smoke detector to go off because the excess dust fooled it into thinking there was smoke. I put my hand in front of a register he wasn’t working on and could hardly feel a suction. Although we discussed how I open and close damper doors, I realized later that he never checked, opened or adjusted them during the cleaning. He could have closed all but the one he was working on in order to increase suction results. His next step was to blast air into the duct and then attach a “squid-like” device that slapped around inside the duct as far as he could reach. This is important! In a newer house, ducts have long straight runs from the furnace. In older houses like mine they can turn and twist. In fact, the duct we have a problem with runs straight up from the basement inside a wall and turns 90 degrees into a soffit for three feet then into two 90 degree turns to get into the floor joist area for another two feet and finally a 90 degree turn up to the second floor register. When he cleaned this one he could only get three feet into the register with the hose or squid because of the turns. That was the case with most. Hardly what could be described as a decent cleaning.
The fact is if they are dirty why not clean them. As for the Dr’s comment about if it is not disrupted it is fine. As a pet owner sometimes un disrupted pet hair will sit in the corner of a room or under a counter un disrupted but I still clean it when I notice it. Just because you cant see it doesn’t mean you should leave it there to collect more and more. The people that don’t want there air ducts clean either simply cant afford it but would like it done. OR! the crowd that are to cheap.. You should Clean all portions of your house.

The renters in my rental home complained of the dryer needing 2 cycles to dry their clothes. I called out Arizona Air Duct to clean the vent. Well, $75 later the issue is not fixed. I had another company come out. They pulled out a section of the vent to show me- there's maybe half the piping still coated in lint. (I wish i could post pictures here...) They refused to refund my money, so I'll be filing a small claims suit. AVOID these scammers. I'm not sure what 'work' they even did!
Moisture can enter the duct system through leaks or if the system has been improperly installed or serviced. Research suggests that condensation (which occurs when a surface temperature is lower than the dew point temperature of the surrounding air) on or near cooling coils of air conditioning units is a major factor in moisture contamination of the system. The presence of condensation or high relative humidity is an important indicator of the potential for mold growth on any type of duct. Controlling moisture can often be difficult, but here are some steps you can take:
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