Consumer electronics casings (ABS plastic housings) — household safety profile

What is this product?

Consumer electronics casings — the plastic housings of computers, monitors, televisions, printers, routers, gaming consoles, and household appliances — are predominantly made from ABS plastic (acrylonitrile butadiene styrene) compounded with flame retardant additives to meet UL 94 flammability standards. The chemical concern profile of electronics plastic casings has evolved through two eras: (1) the PBDE era (pre-2004), during which DecaBDE and other PBDEs were the dominant flame retardants in electronics plastics, leading to extremely high PBDE concentrations in electronics recycling workers and creating the persistent indoor contamination of homes with legacy electronics; and (2) the post-PBDE era, in which TCEP, TDCPP, and newer organophosphate flame retardants replaced PBDEs with different but still concerning toxicity profiles. ABS plastic itself contains residual monomer acrylonitrile — a probable human carcinogen (Group 2A, IARC) that off-gasses from heated ABS (e.g., 3D printers, high-temperature electronics) — along with styrene residuals. Electronics casings have a second life as e-waste, where improper processing generates toxic pyrolysis products including dioxins, furans, and additional PAHs from FR-containing plastic combustion.

What's in it

Click any compound name for its full safety profile, regulatory consensus, and exposure data.

Who's most at risk

• Children — Floor-level exposure, developing respiratory systems

How to use it more safely

• Use in temperature range of 0-40°C to prevent warping or degradation
• Keep away from direct sunlight and UV exposure during storage and use
• Ensure proper ventilation around electronics to prevent heat buildup
• Handle with clean, dry hands to avoid chemical transfer

Red flags — when to walk away

• Strong 'new electronics' or 'new plastic' smell from recently purchased electronics — The distinctive new electronics odor is primarily styrene, acrylonitrile, and other VOC off-gassing from ABS casings. The odor peaks in the first days to weeks and diminishes with time as surface residuals deplete. Enclosed home office or bedroom with a newly set up computer has elevated ABS VOC concentrations during this off-gassing period.
• Pre-2014 electronics still in use — especially CRT monitors, older desktop computers, older televisions — Electronics manufactured before 2014 almost certainly contain DecaBDE or other legacy PBDEs in ABS casings. These continue off-gassing PBDE vapors and shedding PBDE-containing dust. CRT televisions and monitors are particularly high PBDE content items.

Green flags — what to look for

• EPEAT Gold or TCO Certified — halogen-free casing specification — These certifications require halogen-free flame retardants in external casings, eliminating PBDE and halogenated FR concerns from the casing material. EPEAT Gold is operated by the Green Electronics Council with ANSI/IEEE certification basis; TCO Certified is the Swedish standard used for electronics procurement in Nordic countries and increasingly globally.

Safer alternatives

• Polycarbonate (PC) housings — Greater impact resistance and higher temperature tolerance than ABS
• Aluminum or metal casings — Better heat dissipation and durability; fully recyclable
• Bioplastic housings — Lower environmental impact and reduced chemical leaching concerns

Frequently asked questions