No air purifier can remove all mold spores. And it will not remove the black mold you see on surfaces. To do that you must address the source of mold.
Mold spores are so small that they are invisible to the naked eye and float in the air. They thrive when they land on damp surfaces either indoors or outdoors.

An air purifier with a true HEPA filter can trap mold spores circulating in the air.
But there is a caveat poor quality air purifiers and not following filter maintenance instructions can lead to mold breeding on the filter and being recirculated into the air you breathe.
Table of Contents
- Air Purifiers That Tackle Mold-Growing Moisture
- Getting Rid of Black Mold
- How Long Does It Take Mold to Become Visible
- Mold and Allergies
- Water Heaters and Mold
- Damp Basements and Laundry Rooms
- Cracks In Building Foundation
- Mold Remediation Costs
- Fungicides and Mold
- Making Air Purifiers Your Mold Partner
Air Purifiers That Tackle Mold-Growing Moisture
Most of us have had the experience of encountering terrible mold stains on wood, tiles, bathrooms, kitchens, or walls. Mold can even grow in the refrigerator and on food.
Mold can only grow with moisture paid link no moisture then no mold. So, the trick is to control moisture. An air purifier canโt control moisture unless it includes a dehumidifier and some models do.
If you donโt control the moisture source and clean existing mold the problem will remain or come back even with the air purifier.
Getting Rid of Black Mold
Some people think painting over mold will get rid of the problem. Not by a long shot. Eventually, the mold will reappear through the paint.
If youโre living in a moldy home paid link; isolate the area so you donโt have to come in contact with it. Hire a mold remediation specialist, especially if the area is sizeable. Exposure could be dangerous avoid contact by all means and if at all possible, leave until removal is completed.
How Long Does It Take Mold to Become Visible
After mold spores begin to colonize; it can take 18 to 21 days to become visible. If the mold isnโt in an area frequently trafficked it can go undetected for years. Basements are notorious places to find mold. Some remain wet. So, this is a good place to keep tabs on especially if it hasnโt been resurfaced. Believe it or not, shoes can harbor mold. Places to find washing machine mold are in the rubber and door gasket. Front-loading washing machines tend to be more mold-prone than top loaders.
Mold and Allergies
Mold is not harmless it can make you sick. It can irritate air passages, and cause allergic reactions like sneezing, itching, and bouts of congestion.
However long-term exposure to large amounts of mold can cause mold to grow in the lungs causing long-term fatigue and brain fog.
Water Heaters and Mold
Leaky water heaters can create a mold problem. Water can settle on the floor around the base of the water heater. If you notice a sudden drop in water pressure this could be due to a leak from a valve or piping. Where there is water and dampness mold and insects are soon to follow. So, fixing the problem right away is of utmost importance. You may have to call in an exterminator if you have begun to see bugs. Ants, wasps, and beetles are a few insects that feed on mold.
Damp Basements and Laundry Rooms
Just like water heaters washing machines can become leaky causing them to lie in pools of water. Humidity is common in laundry rooms. So, this would be a great place for a dehumidifier.
Without good ventilation, moisture can rise to the ceiling creating avenues for mold and mildew.
If your home has a dirt-floor basement, you may consider waterproofing it to prevent mold. Waterproofing will seal cracks, install drainage, and resurface basement walls and floors with a waterproof coating.
Cracks In Building Foundation
Cracks in the walls and foundation can create opportunities for mold to grow; and indicate foundation issues. Foundation issues can even cause your windows to crack.
Mold Remediation Costs
Costs for mold remediation specialist will vary widely depending on the size of the area. This could be a few dollars per foot, or thousands once the job is completed. Tack on to that the additional cost for inspection which can start at about $200 upwards.
Depending on the size of the affected area once work starts it could take up to a few days to complete.
Some but not all remediation specialists recommend you leave home while work is being completed. There is a difference of opinion among professionals on this one. But in either case, the area will be isolated.
But remember mold is dangerous and staying home during remediation can be a health risk, especially for the elderly and young children who may have extra sensitivity to mold. Speak with your doctor for additional help.
Fungicides and Mold
Fungicides are pesticides and one of several chemicals used by mold remediation specialists. Fungicides control mold and mildew. It is an irritant that can cause coughing, skin irritation, and sneezing.
Some fungicides are believed to be carcinogenic affecting the uterus, liver, adrenal gland, bladder, and kidneys. Studies indicate a possible increased risk for tumors with certain fungicides.
There have been instances where livestock have been unintentionally poisoned , through contact with crops where fungicides have been applied. If you have concerns for your pet speak with your veterinarian.
Not all fungicides have the same level of toxicity risk. It is advised to wait until the application area has dried before exposure.
Making Air Purifiers Your Mold Partner
By no means should an air purifier be your first line of defense against mold. Instead, make them part of your ongoing maintenance program to help improve air quality after mold cleaning of existing mold.