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IAQ · VOC

Material VOC Estimator

Pick the finishes, adhesives, and furniture going into a room; get a rough indoor-air-quality (IAQ) score and a list of low-VOC swaps. Different from generic IAQ calculators: each material carries its own emission profile over time (peak at 24–72 h, decay over months).

Room

Finishes & furniture (tick to include)

What problem this solves

Designers specify low-VOC paint and call it done. But paint is often 30% of total VOC load; carpet adhesive, MDF cabinetry, vinyl flooring, and new upholstery together can outweigh paint by 4×. This tool rolls up the full material list to surface the real contributors.

Who it’s for

Limitations

Common questions

What counts as low-VOC?

Paints: < 5 g/L (some brands advertise < 0.5 g/L). Adhesives: < 50 g/L. Furniture: look for Greenguard Gold, Cradle to Cradle, or SCS Indoor Advantage Gold certifications.

How long does off-gassing last?

Most paints reach background levels within 2–4 weeks. Carpet and MDF can off-gas for 6–12 months, though peak emission is in the first week. Ventilation (open windows for 2 weeks) is the most effective mitigation.

Are essential-oil diffusers safer than candles?

Depends on the formulation. Pure essential oil diffusion produces terpenes (VOCs). Scented candles add combustion byproducts. Neither is “safe” in an IAQ sense; if you want low-emission fragrance, use natural reeds in a carrier oil and ventilate.

About this tool

One of 36 interior design calculators on InteriorLab. Calculations are client-side; no values stored.

Privacy

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Disclaimer

Estimates only. For LEED/WELL IAQ credit compliance, use certified low-VOC products and on-site air testing. See full Disclaimer.