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Why Is There So Much Dust in My House?

Last updated March 15, 2023

Based in Manchester, Marie is one of the writers at HouseFresh and our resident dust expert. She works together with our in-house researchers and our Managing Editor to produce in-depth articles offering practical advice on how to tackle indoor air quality issues.

Our verdict:

Dust isn’t just a nuisance; it can seriously impact your health, too. While a certain amount of dust plagues all houses, there could be a few reasons why your home feels particularly dusty. These can include having carpets in which dust can hide inside and your little (or even big) furry friend regularly shedding their fur.

Luckily, there are many ways you can reduce the amount of dust, such as vacuuming regularly and grooming your pet. 

An air purifier is another surefire way to rid your home of dust.

If dusting is one of the banes of your life, you’re not alone. It can be annoying when you’ve just dusted, only to spot even more dust! Yet there is a more worrying aspect to all this as dust can seriously affect your health. Sneezing and coughing are just some of the issues it can cause, and we’ll be looking into more of the health impacts in this article. 

To create more of a dust-free house, you need to find out where it’s coming from, and we’ll let you know some of the most common sources. Even more importantly, you’ll discover tips on how to fix the issues. 

Please keep reading to the end of the article for our recommendations on the best air purifiers to help eliminate harmful dust particles. 

6 Common Causes of Household Dust (and How To Fix Them)

Ok, let’s check out the main causes of basic house dust. Luckily they’re pretty simple to fix if you know what you’re doing. 

1. Dust hides in your carpet

Carpet fibers are ideal places for dust and dust mites to gather. This is particularly so if you wear shoes inside because of the dirt being tracked in from outdoors. Similarly, if you have pets, dirt and dust particles can transfer to carpets and rugs from their paws. 

💡How to fix it
Wiping your shoes on a doormat and leaving them at the front door will significantly help to minimize dust. Frequent vacuuming — ideally daily or every other day — can also help. Just be aware that vacuuming can recirculate some of the dust back into your living space.

Pro tip: Use a vacuum that has a high-efficiency particulate air (HEPA) filter. This can catch as much as 99% of dust and debris. 

2. Draperies and soft furnishings collect dust

Like with carpets, fabrics and soft textiles accumulate dust. It becomes attracted to such items and is captured in the fibers. Then when you open the curtains in the morning or sit in your favorite squishy chair or sofa, those dust particles are released into the room.

💡How to fix it
If it isn’t practical to get rid of soft furnishings (or you don’t want to), then be sure to use your vacuum’s attachments, and hoover upholstered furniture and curtains every week. You could also think about having the drapes dry-cleaned once a year to minimize dust further. 

Pro tip: If you have blinds or shades instead of curtains, you can use either the brush attachment on your vacuum to clean the dust or a microfiber cloth. 

3. Your pet could be creating dust

Whether you can see the evidence or not, cats and dogs (including shorthaired ones) are always shedding fur and skin flakes. This combination is known as pet dander, and not only can it cause allergic symptoms like sneezing and watery eyes and increase your home’s dust level. If you have more than one kitty or canine, then dust levels rise even more…

💡How to fix it
A regular grooming routine is essential when you have a furry friend or two. Be sure to brush your pets at least once a week to remove loose hair. If possible, you could also have them professionally groomed. 

Pro tip: Wash your pets’ bedding at least once a week in hot water (130ºF) and wash their toys with detergent and warm water every two weeks. Read our full guide to beating pet dander for more tips. 

4. A poor dusting technique 

This one may be surprising, but it’s true. Even if you dust regularly, a poor technique means that you could move all that dust around rather than get rid of it. Using a dry cloth or feather duster often does more harm than good. Equally, dust can be everywhere, so you need to focus on the whole house rather than just those areas where you can see dust build up. 

💡How to fix it
Like we discussed above, using a microfiber cloth will help trap most dust, meaning less is recirculated. But if you are partial to a rag, dampening it will also help capture dust.

Pro tip: If you dust from top to bottom, any particles that escape will settle on the floor, and you can catch these by hoovering. 

5. Gaps around windows and doors can let in dust 

With energy bills rising, it’s crucial to be aware that gaps around windows and doors are a leading cause of energy loss. Yet gaps also mean that outdoor dust and other harmful particles, such as pollen, can enter the house whenever the wind blows. If you live near a dirt or gravel road, this can make a bad situation even worse. 

💡How to fix it
To prevent dust from blowing in, simply apply caulk to gaps around windows and be sure to replace worn weatherstripping around doors.

Pro tip: If you’re unsure whether you have gaps, lighting a candle around the windows and exterior doors can give you a good idea. If the flame dances around, there is airflow, and you have a leak.

6. Your HVAC system can generate dust

An HVAC unit works by bringing air in from the outside and running it through a filter. It then heats or cools the inside of your home by blowing that air out through air ducts. However, if the filter is cheap, it may have larger holes, so more dust can enter your home through the vents. 

Similarly, your whole HVAC system will have to work harder to filter out contaminants if it’s dirty. 

💡How to fix it
HVAC air filters are rated by their Minimum Efficiency Reporting Value (MERV) score. This ranges from 1-20, and the higher the rating, the fewer dust particles can pass through the filter. ASHRAE recommends choosing a filter with a 13 rating, but be sure to assess the capabilities of your system first.

Pro tip: Even the best filter with a good MERV rating will get clogged with dust. Aim to replace the air filters at least every three months or more frequently if they become filthy.

Dust VS Your Health 

There’s no doubt about it: dust is everywhere. But what exactly is dust? It combines many components, including dead skin cells, hair, mites (and their body parts), microbes and microplastics. You can identify dust as minute gray specks or tiny balls of fluff. Yet some dust particles may be invisible to the naked eye. 

Okay, so where does it all come from? Most dust pollutants originate outside your home and can be carried inside by shoes and clothing. It can also enter through open windows and seep in through cracks and gaps around windows and doors. Dust mites, however, are one of the leading sources of indoor dust. 

Unfortunately, many health issues are caused by household dust, most notably allergies triggered by dust mites. According to the ACAAI, these symptoms include:

  • Sneezing
  • Itching
  • Red, itchy, or watery eyes
  • Coughing, wheezing, and shortness of breath
  • Runny or stuffy nose

Such symptoms are uncomfortable enough, yet dust can also lead to more serious health problems, like lead poisoning (if the dust contains lead) and lung cancer. Similarly, people with asthma may experience severe respiratory problems and those with eczema can suffer from more pronounced skin flare-ups. 

Equally, those with other pre-existing health conditions like bronchitis, emphysema and chronic obstructive pulmonary disease (COPD) may worsen their symptoms.

Put simply, the longer you breathe in dust, the more likely it will affect your health. 

Other people who are more at risk of developing health problems due to long-term exposure to high levels of dust include:

  • Babies and young children
  • Elderly people (aged 65 years and over)
  • Smokers
  • People with heart conditions

When undertaking particularly dusty activities either at home or at work, it’s highly recommended to use personal protective equipment (PPE). Equally, talk to your doctor if you regularly experience shortness of breath or hay fever-type symptoms due to breathing dust.

The Top 3 Air Purifiers For Dust 

On top of solutions like vacuuming regularly, using an air purifier is another highly effective way of reducing dust in your home. We’ve personally tested a variety of different models. We can confidently recommend these three units and please see our complete list of what we think are the best air purifiers for dust in our latest study.

Best Overall
Best Overall
Best Budget Option
Best Budget Option
Best for Large Spaces
Best for Large Spaces
Style
LEVOIT Air Purifiers for Home Large Room, Covers Up to 3175 Sq. Ft, Smart WiFi and PM2.5 Monitor, H13 True HEPA Filter Removes 99.97% Particles Dust Smoke Mold Pollen, Alexa Control, LAP-C601S-WUS
LEVOIT Air Purifier for Home Allergies Pets Hair in Bedroom, H13 True HEPA Filter, Covers Up to 1095 Sq.Foot, 24db Filtration System, Remove 99.97% Dust Smoke Mold Pollen, Core 300, White
BLUEAIR Air Purifier Large Room, Air Cleaner for Dust Pet Dander Smoke Mold Pollen Bacteria Allergen, Odor Removal, for Home Bedroom Living Room, Washable Pre Filter, HEPASilent, Blue 211+ (Non-Auto)
Pros
Powerful motors make this unit rapid at removing pollutants
Excellent value for money
Simple to use yet offers powerful performance
Cons
Unimaginative design
Lack of smart features makes it feel more basic
No smart features for price
CADR
410 CFM / 697 m³/h
145 CFM / 246 m3/h
350 CFM / 595 m³/h
Filter Technology
H13 True HEPA filter
H13 HEPA and Activated Charcoal
HEPASilent™ filter
Recommended Room Size
1,588 ft²
219 ft²
540 ft²
Weight
13.7 lbs / 6.2 kg
3.4 kg / 7.48 lbs
12.5 lbs / 5.67 kg
Price
$299.99
$99.99
$290.95
Best Overall
Best Overall
Style
LEVOIT Air Purifiers for Home Large Room, Covers Up to 3175 Sq. Ft, Smart WiFi and PM2.5 Monitor, H13 True HEPA Filter Removes 99.97% Particles Dust Smoke Mold Pollen, Alexa Control, LAP-C601S-WUS
Pros
Powerful motors make this unit rapid at removing pollutants
Cons
Unimaginative design
CADR
410 CFM / 697 m³/h
Filter Technology
H13 True HEPA filter
Recommended Room Size
1,588 ft²
Weight
13.7 lbs / 6.2 kg
Price
$299.99
More Details
Best Budget Option
Best Budget Option
Style
LEVOIT Air Purifier for Home Allergies Pets Hair in Bedroom, H13 True HEPA Filter, Covers Up to 1095 Sq.Foot, 24db Filtration System, Remove 99.97% Dust Smoke Mold Pollen, Core 300, White
Pros
Excellent value for money
Cons
Lack of smart features makes it feel more basic
CADR
145 CFM / 246 m3/h
Filter Technology
H13 HEPA and Activated Charcoal
Recommended Room Size
219 ft²
Weight
3.4 kg / 7.48 lbs
Price
$99.99
More Details
Best for Large Spaces
Best for Large Spaces
Style
BLUEAIR Air Purifier Large Room, Air Cleaner for Dust Pet Dander Smoke Mold Pollen Bacteria Allergen, Odor Removal, for Home Bedroom Living Room, Washable Pre Filter, HEPASilent, Blue 211+ (Non-Auto)
Pros
Simple to use yet offers powerful performance
Cons
No smart features for price
CADR
350 CFM / 595 m³/h
Filter Technology
HEPASilent™ filter
Recommended Room Size
540 ft²
Weight
12.5 lbs / 5.67 kg
Price
$290.95
More Details

Final Thoughts

Dust can cause serious health problems so it’s super important to keep on top of it in your house. Yet while there may be lots of reasons why your home seems to be plagued by so much of it, don’t worry too much because the issues can often be quickly resolved. 

Frequent vacuuming can make a huge difference. And for an even more powerful way of getting rid of dust, consider using a high-quality air purifier that effectively captures dust particles and other pollutants.

SOURCES

Ashton, D. (2022). Why Is My House So Dusty? housefresh.com

Allen, P. (2023). 7 Best Air Purifiers For Dust Removal. housefresh.com

American College of Allergy, Asthma and Immunology. (2023). Dust Allergies. acaai.org

American Society of Heating, Refrigerating and Air-Conditioning Engineers. (2023). Filtration and Disinfection FAQ. ashrae.org

Floyd, L. (2023). Why is My House So Dusty? 9 Ways to Fix the Problem. upstairsdownstairscleaning.com

Government of Western Australia Department of Health. (2022). Health effects of dust. healthywa.wa.gov.au

National Centre for Healthy Housing. (2023). Dust. nchh.org

Taylor, G, Vila, B. (2022). Solved! Why Is My House So Dusty? bobvila.com

Yacoubou, J. (2022). What Is Household Dust and Where Does It Come From? housefresh.com

Last update on 2023-06-06 / Affiliate links / Images from Amazon Product Advertising API