Knowledge about the potential benefits and possible problems of air duct cleaning is limited. Since conditions in every home are different, it is impossible to generalize about whether or not air duct cleaning in your home would be beneficial.
If no one in your household suffers from allergies or unexplained symptoms or illnesses and if, after a visual inspection of the inside of the ducts, you see no indication that your air ducts are contaminated with large deposits of dust or mold (no musty odor or visible mold growth), having your air ducts cleaned is probably unnecessary. It is normal for the return registers to get dusty as dust-laden air is pulled through the grate. This does not indicate that your air ducts are contaminated with heavy deposits of dust or debris; the registers can be easily vacuumed or removed and cleaned.
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.
You may consider having your air ducts cleaned simply because it seems logical that air ducts will get dirty over time and should occasionally be cleaned. While the debate about the value of periodic duct cleaning continues, no evidence suggests that such cleaning would be detrimental, provided that it is done properly.
On the other hand, if a service provider fails to follow proper duct cleaning procedures, duct cleaning can cause indoor air problems. For example, an inadequate vacuum collection system can release more dust, dirt and other contaminants than if you had left the ducts alone. A careless or inadequately trained service provider can damage your ducts or heating and cooling system, possibly increasing your heating and air conditioning costs or forcing you to undertake difficult and costly repairs or replacements.
You should consider having the air ducts in your home cleaned if:
There is substantial visible mold growth inside hard surface (e.g., sheet metal) ducts or on other components of your heating and cooling system. There are several important points to understand concerning mold detection in heating and cooling systems:
- Many sections of your heating and cooling system may not be accessible for a visible inspection, so ask the service provider to show you any mold they say exists.
- You should be aware that although a substance may look like mold, a positive determination of whether it is mold or not can be made only by an expert and may require laboratory analysis for final confirmation. For about $50, some microbiology laboratories can tell you whether a sample sent to them on a clear strip of sticky household tape is mold or simply a substance that resembles it.
- If you have insulated air ducts and the insulation gets wet or moldy it cannot be effectively cleaned and should be removed and replaced.
- If the conditions causing the mold growth in the first place are not corrected, mold growth will recur.
Ducts are infested with vermin, e.g. (rodents or insects)
Ducts are clogged with excessive amounts of dust and debris and/or particles are actually released into the home from your supply registers.
Original Article Source:https://www.epa.gov/indoor-air-quality-iaq/should-you-have-air-ducts-your-home-cleaned
National Indoor Air Quality Awareness Month is observed annually in October. This month is dedicated to reminding Americans to take a look at their home and see how they can improve the quality of the air they breathe. While outside air pollution gets a lot of attention, it’s the air inside our homes that can be even more dangerous. Most people spend nearly 80% of their time indoors, so the quality of the air we breathe is very important.
What is Indoor Air Quality?
Indoor Air Quality refers to the air quality within buildings and structures, especially as it relates to the health and comfort of the occupants in the building. Studies conducted by the EPA show that indoor air can be 3 – 5 times more contaminated than outdoor air. This spike in air pollution may be due to modern day building practices. In an effort to be more energy efficient, today’s homes are built airtight with more insulation.
On the flipside, these less drafty homes no longer have natural ventilation to bring in fresh air. Everyday living provides an ongoing source for airborne contaminants like dirt, dust, and dander. These pollutants become trapped in your home due to poor ventilation and get recirculated by your air ducts.
Why is Indoor Air Quality Important?
Breathing quality indoor air is critical for good health. Common complaints related to poor indoor air quality include headaches, fatigue, nausea or irritation of the eyes, nose, and throat. Some people, including children, seniors and those with asthma and allergies may be more sensitive to indoor air pollutants, and their symptoms tend to be more serious.
What Contributes to Indoor Air Quality?
- Volatile organic compounds
- Poor ventilation
- Particulates (from dirt and dust tracked in from outdoors)
How Can Air Duct Cleaning Improve your Indoor Air?
Air duct cleaning is a great way to address the air quality inside your home. Professional air duct cleaning can provide an evaluation of your home’s ducts. Through everyday occupancy, your home’s ducts can become clogged with dirt, dust and pet hair. When air can’t circulate through a system or when filters are especially dirty, they can become breeding grounds for mold and bacteria.
NADCA recommends having your air ducts inspected once a year and cleaned as needed. When it comes time to hire an air duct cleaning company, be sure to hire a NADCA-certified technician. This will ensure the job is done according to industry standards.
Learn more about indoor air quality
Original article: nadca.com/resources/blog/what-indoor-air-quality
Kitchen Mold Removal
Are you concerned that black mold could be lurking in your kitchen, perhaps hiding in the cupboards? Not only is it unattractive, it can also cause respiratory problems for your family. The following guide can help you locate, prevent and destroy any black mold that has taken up residence in your kitchen.
Where to find black mold in the kitchen?
Black mold tends to grow in dark, damp areas, which means it could be festering in a kitchen cabinet or cupboard for a long time before you uncover it. For this reason, it’s vital that you identify the areas in your kitchen that are going to be most prone to mold growth. This will give you the necessary knowledge so that you can find the problem before it gets too bad. Places to check include the following:
- Underneath the kitchen sink. Check the cabinet bottom and the back wall where the sink pipes enter for dampness or past signs of water damage, such as bubbling or peeling surfaces. Even if black mold isn’t visible, it could be growing on the underside of the sink cabinet or behind the wallboard.
- Under the refrigerator. A leak from a water line to the icemaker or simple condensation collection underneath the fridge could create the optimum environment for fungal growth. If your kitchen flooring looks like it has suffered water damage or if there is standing water and mildew present, black mold could also be growing under the floorboards. Also, check any cupboards near the fridge to make sure there is no moisture damage.
- Cabinets above or next to wall mounted microwaves or oven hoods. Another common trouble spot is behind the cabinets that border microwaves and hoods. This is because moisture and condensation from cooking can accumulate in these cupboard areas, especially if ventilation is insufficient.
Kitchen mold prevention
Since prevention is key to black mold management in the home, now that you know your kitchen’s trouble spots you are better able to stop it from growing in the first place.
Begin by checking underneath the sink on a regular basis and fixing leaks immediately. Keep the sink cupboard area clean and neat so you can empty it out for a quick leak check regularly. If you are like many people and use this cupboard area for cleaning supplies, place the supplies in a handled carrier so you can quickly pull everything out. A good time to check is after you have been using the sink, such as after dishwashing. If there is a leak, it is likely going to be damp if you just drained the sink.
As for the fridge, it’s good practice to pull it out and dust the rear coils every one to two months, anyway. Simply pencil this chore into your home maintenance calendar. You can then use this opportunity to check beneath the fridge for leaks and to make sure water lines are attached and not leaking.
Finally, inspect the area around and under the cabinets, microwave, and hood after you use the oven or microwave. If you find a lot of moisture or condensation, chances are that you need to add a stronger fan or better ventilation to the kitchen.
Kitchen mold removal
Black mold can be tenacious when it comes to removal. Although you can often remove the visible black mold by yourself, there is likely hidden mold that you cannot find for removal as easily. The basic removal process is as follows:
Step 1: Testing Testing is done if there is signs of moisture but no obvious visual signs of fungal growth. Testing may also be done if there is light visible growth, since the remediation firm will need to determine the extent of the growth.
Step 2: Seal the infested area The home is sealed. This means that the area that has mold, in this case the kitchen, is sealed off from the rest of the house so that black mold removal doesn’t send spores into other areas.
Step 3: Identification and replacement The cause of moisture is identified and fixed. Otherwise, the mold will simply return if there is still a moisture source. This may mean the removal and replacement of cabinets and wallboard so they cleaning can occur under them.
Last step: Removal and cleaning The actual removal and remediation begins. The crew will use a disinfecting and cleaning solution that removes and kills the fungus. Stains from the black mold may be present on cabinets, but these can usually be painted over and repaired.