Costco Thomasville Walsen Sectional Linked to Son’s Illness and Asthma Attack from Formaldehyde

June 15, 2026 — A recent incident report details a concerning health issue potentially linked to a Costco Thomasville Walsen Sectional with Storage Ottoman. A consumer reported that their son became ill and experienced an asthma attack, which they attribute to formaldehyde present in the newly purchased couch.

Product Details

Brand Name: Thomasville
Manufacturer: Heritage Home Group LLC
Retailer: Costco
Incident Report Number: 20260527-BDAD0-2147318536
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Incident Overview

According to an incident report filed on May 27, 2026, a consumer purchased a Thomasville Walsen Sectional with Storage Ottoman from Costco. Following the introduction of the new furniture into their home, their son reportedly began experiencing illness and an asthma attack. The consumer attributes these health issues directly to the presence of formaldehyde, which they believe is emanating from the couch. The report does not provide further details on the specific symptoms experienced by the son, the severity of the asthma attack, or how the presence of formaldehyde was determined by the consumer.

Safety Concerns

The primary safety concern highlighted in this incident is the potential exposure to formaldehyde from household furniture. Formaldehyde is a colorless, strong-smelling chemical commonly used in the manufacture of building materials and numerous household products, including resins used in particleboard, plywood, and other pressed-wood products often found in furniture.

Immediate Dangers:

  • Respiratory Issues: Exposure to formaldehyde can irritate the eyes, nose, and throat. For individuals with pre-existing respiratory conditions like asthma, even low levels of exposure can trigger or worsen symptoms, leading to coughing, wheezing, chest tightness, and asthma attacks, as reported in this incident.
  • Allergic Reactions: Some individuals may develop allergic reactions, including skin rashes, from contact with formaldehyde.
  • Headaches and Nausea: Other immediate symptoms can include headaches, dizziness, and nausea.

Long-Term Risks:

  • Cancer Risk: The U.S. Environmental Protection Agency (EPA) and the International Agency for Research on Cancer (IARC) classify formaldehyde as a known human carcinogen. Long-term exposure, particularly at higher concentrations, has been linked to an increased risk of certain cancers, including nasopharyngeal cancer and leukemia.
  • Chronic Respiratory Problems: Persistent exposure could lead to chronic respiratory irritation or exacerbate existing conditions.

Who Might Be Affected:

  • Vulnerable Populations: Children, the elderly, and individuals with respiratory sensitivities or compromised immune systems are particularly vulnerable to the adverse health effects of formaldehyde exposure. This incident specifically involves a child experiencing an asthma attack, underscoring the heightened risk to sensitive individuals.

Property Damage Potential:
While formaldehyde off-gassing primarily poses health risks, it generally does not cause direct property damage to the furniture itself or other household items. The concern is entirely focused on human health and indoor air quality.

What Consumers Should Do

If you own a Costco Thomasville Walsen Sectional with Storage Ottoman and have concerns about potential formaldehyde exposure or have experienced similar health issues, here are steps you should consider:

  • Ventilate Your Home: Increase ventilation by opening windows and using fans, especially if the furniture is new. This can help dissipate off-gassed chemicals.
  • Monitor Symptoms: Pay close attention to any new or worsening respiratory symptoms, eye irritation, skin reactions, or other unexplained illnesses, particularly in children or individuals with asthma. Seek medical attention if symptoms are severe or persistent.
  • Identify the Product: Check your purchase records or the furniture itself to confirm if you own the “Thomasville Walsen Sectional with Storage Ottoman” purchased from Costco.
  • Reduce Exposure: If you suspect the furniture is causing health issues, consider moving it to a well-ventilated area that is not frequently occupied, or if possible, remove it from the home until its safety can be assessed.
  • Contact the Retailer/Manufacturer: Reach out to Costco and Heritage Home Group LLC to report your concerns and inquire about product testing or return policies.
  • Report the Incident: File a detailed incident report with the U.S. Consumer Product Safety Commission (CPSC) at SaferProducts.gov. This helps the CPSC track potential hazards and initiate investigations. Include specific details about your purchase, symptoms experienced, and any attempts to resolve the issue.

Manufacturer’s Response

No manufacturer response has been provided in the incident report.

Legal Help Available

If you or a loved one has been injured by a defective product or suffered property damage due to a product malfunction, you may be entitled to compensation. The experienced product liability attorneys at Farzan Law understand the complexities of defective product cases and can help you navigate the legal process. Farzan Law is a California based Personal Injury law firm focusing on protecting the rights of those wrongfully injured.

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Contact us today for a free consultation: 424-325-3112

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Note: This information is based on incident reports provided by the U.S. Consumer Product Safety Commission. If you find information that is incorrect, please contact us immediately so we can correct the post to reflect accurate information.

Disclaimer: The information provided in this post is not intended to be legal or medical advice. This article is based on publicly available incident reports. The incidents mentioned have not necessarily been independently verified or adjudicated.

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