Mold Resources

Practical information about mold exposure, water-damaged buildings, reducing indoor moisture, testing your environment, and knowing when to seek professional help.

What is mold?

Mold is a type of fungus that grows in damp or humid environments. Indoors, mold can grow on materials such as wood, drywall, carpet, ceiling tiles, and other surfaces when sufficient moisture is present.

Common indoor molds include species of Aspergillus, Cladosporium, Penicillium, and Stachybotrys chartarum, sometimes referred to as “black mold”.

Signs of Moisture or Water Damage

Possible signs of moisture or water damage include:

  • Visible mold growth

  • Musty or earthy odors

  • Water stains or discoloration

  • Peeling or bubbling paint or wallpaper

  • Warped or buckled building materials

  • Condensation or persistently high humidity

  • Evidence of roof, plumbing, or foundation leaks

Common symptoms of mold exposure.

Exposure to damp or moldy environments can affect people differently. Some people experience no symptoms, while others—particularly those with mold allergies, asthma, or certain respiratory conditions—may be more sensitive.

Symptoms associated with mold exposure may include:

  • Nasal congestion or runny nose

  • Sneezing

  • Coughing or wheezing

  • Sore or irritated throat

  • Red, itchy, or watery eyes

  • Skin irritation or rash

  • Shortness of breath or chest tightness

  • Worsening asthma symptoms

Because these symptoms can also occur with many other health conditions, symptoms alone cannot determine whether mold exposure is the cause.

Immediate steps to take if exposed to mold.

Reduce Your Exposure

If you notice significant mold growth or experience symptoms when you are in a particular environment, reduce your exposure when possible. This may be especially important for people who are sensitive to mold, have respiratory conditions, or notice that symptoms worsen in the affected environment.

Ventilate & Filter the Air

If it is safe to remain in the space, increase ventilation by opening windows and doors when appropriate. A high-quality air purifier with a HEPA filter may also help capture airborne particles and mold spores. Air purification does not remove mold growing on surfaces or correct the underlying moisture problem, so the source of the mold still needs to be addressed.

Determine the Appropriate Remediation

Small areas of surface mold may sometimes be handled by the homeowner, while larger areas, recurring mold, significant water damage, or suspected hidden mold may require professional assessment and remediation.

The goal of remediation is not simply to kill mold, but to remove contaminated material when necessary and correct the moisture problem that allowed the mold to grow.

If you suspect hidden mold or are unsure of the extent of the problem, consider working with an experienced mold inspector or remediation professional. Our office can provide recommendations for inspectors and remediators when needed.

Consider Medical Evaluation

If you are experiencing persistent or worsening symptoms that you believe may be associated with mold exposure, consider discussing them with a qualified healthcare practitioner. Evaluation and treatment should be individualized based on your symptoms, health history, environmental exposure, and other relevant health factors.

Support Your Body During & After Exposure

Some of our patients report finding supportive practices such as Epsom salt baths or infrared sauna helpful as part of their individualized care plan. Our practitioners may also discuss reducing unnecessary exposure to chemicals and fragrances in personal care and household products when appropriate.

These supportive measures are not a substitute for identifying and addressing the source of mold exposure or for appropriate medical treatment.

Reducing Mold Growth in Your Home.

Control Humidity

Keep indoor humidity low using air conditioning or a dehumidifier when needed. Pay particular attention to damp areas such as basements, bathrooms, and other areas where condensation or moisture tends to develop.

Ventilate

Use exhaust fans in bathrooms and kitchens to remove excess moisture from showering, cooking, and other activities. Open windows when outdoor conditions are appropriate and additional ventilation would be helpful.

Keep Your Home Clean

Regularly dust and vacuum your home. A vacuum equipped with a HEPA filter can help capture fine airborne particles that settle in household dust.

Maintain Your HVAC System

Replace or clean HVAC filters according to the manufacturer's recommendations and keep the system properly maintained. If you suspect mold growth or moisture within your HVAC system or ductwork, consider having it evaluated by a qualified professional.

Fix Leaks Quickly

Repair leaks in roofs, walls, windows, and plumbing promptly. Wet or damp materials should be thoroughly dried as quickly as possible—ideally within 24–48 hours.

Inspect Moisture-Prone Areas

Regularly check basements, attics, bathrooms, around windows, under sinks, and other areas prone to moisture for leaks, condensation, water damage, or visible mold growth.

In home mold testing and removal.

If you suspect hidden mold, have experienced significant water damage, or want to evaluate an area after remediation, a qualified environmental professional can help assess the property and determine whether testing is appropriate.

A professional evaluation may include a visual inspection, moisture assessment, and, when appropriate, air or surface sampling. Because there is no single test or established indoor mold level that can determine whether a home is completely “mold free,” results should be interpreted along with the condition of the building, moisture sources, and other findings from the inspection.

When mold or water damage is identified, correcting the source of moisture and properly removing affected materials are important steps in preventing continued growth.

Purely Green Environmental

Phone:888-291-3773

Learn more

DCM Environmental Testing Company

Phone: 617-481-5782

Learn more

Bay State Mold Removal

Phone: 857-389-5284

Learn more

Mold & Environmental Exposure Testing

Visual Contrast Sensitivity (VCS)

VCS is a screening tool that measures the ability to distinguish subtle differences in visual contrast. Some practitioners use VCS as one part of the evaluation for patients with suspected exposure to water-damaged buildings or other environmental concerns.

VCS results are not specific to mold exposure and should be interpreted alongside symptoms, exposure history, environmental findings, and other clinical information.

HLA-DR/DQ Genetic Testing

HLA-DR/DQ testing evaluates genetic variations involved in immune system function. Within some CIRS-focused approaches, certain HLA patterns are considered when evaluating a patient's possible susceptibility to prolonged inflammatory responses following environmental exposures.

Genetic results are considered alongside symptoms, exposure history, laboratory findings, and other clinical information rather than used alone to diagnose mold-related illness or CIRS.

Check out our full list of mold testing here.

Books to read

Break the Mold by Jill Crista, N.D

Learn more about Dr. Jill Crista

Toxic by Neal Nathan, M.D.

Learn more about Dr. Neal Nathan

Surviving Mold by Ritchie M. Shoemaker, M.D.

Learn more about Dr. Ritchie Shoemaker

If mold exposure is affecting your well-being, it's time to take action. Schedule a consultation with our functional medicine practitioners today to begin your journey toward a healthier, mold-free life.