Headphones & earbuds

New headphones have a strong plastic or chemical smell

This is a very common and generally harmless off-gassing from new plastic, foam, and adhesive materials, which typically fades within days to a couple of weeks with airing out. It's rarely a defect or safety concern.

Difficulty
Easy
Time
a few days airing out, minimal active effort

Symptoms

  • Noticeable plastic, rubber, or chemical odor right out of the box
  • Smell is strongest on ear pads/tips or the headband
  • Smell seems to be fading gradually since first opening
  • No other issues with sound or function, just the odor

Likely causes

  • CommonOff-gassing from new plastic components and manufacturing adhesivesNew electronics and plastic/foam products commonly release volatile compounds that create an odor for a period after manufacturing.
  • CommonFoam or synthetic ear pad material specifically retaining a stronger odor initiallyCertain foam and synthetic leather materials are more prone to a noticeable new-product smell.
  • PossiblePackaging materials transferring odor during storage and shippingSealed packaging can concentrate manufacturing odors that dissipate once opened and aired out.
  • Less commonA specific manufacturing batch using stronger-smelling materials or adhesivesOccasionally a batch may have a more pronounced smell than typical for a given model.

What to do

  1. Air out the headphones in a well-ventilated area, out of the packaging, for several days.
  2. Wipe down the ear pads and headband with a slightly damp cloth to help remove surface residue contributing to the smell.
  3. Avoid using strong cleaning chemicals directly on foam or leather-like materials, since they can damage the material.
  4. Store the headphones outside of any plastic bag while airing out, since sealed storage can trap the odor longer.
  5. If the smell doesn't fade noticeably after 1–2 weeks of proper airing, consider reaching out to the retailer, since this occasionally indicates a specific manufacturing batch issue.
  6. If anyone using the headphones has sensitivities to chemical smells, allow extra airing time before regular use.

Tools and parts

  • Damp cloth

When to call a pro

This is a normal new-product characteristic, not a defect; if the smell persists strongly after two or more weeks of airing, contact the retailer or manufacturer about a possible exchange.

Safety

Generally low risk

Generally low risk for a careful person. Stop if anything looks different from what this guide describes.

Related guides

Operator provides AI-generated troubleshooting information. It can be wrong. For safety-critical, electrical, gas, structural, medical, automotive safety, or other high-risk problems, consult a qualified professional.