Fabric seats absorb sweat, food crumbs, kids' juice, and skin cells. Vacuums only get the top layer. Here's what 120°C steam reaches.
A vacuum is a surface tool. It pulls dust and crumbs from the top 2-3 mm of the fabric pile. Everything below that, sweat salts, sunscreen residue, dropped food, the proteins from a spilled juice last summer, stays in the foam padding underneath.
What lives in your seats
- Skin cells: every passenger sheds them.
- Dust mites: they eat the skin cells.
- Mould spores: settle whenever the cabin is damp.
- Salts and protein residue from sweat, food, and beverages.
- Allergens: pollen, pet dander, fabric softener residue.
Why 120°C steam works
Steam at 120°C does two things vacuums can't: it penetrates the full depth of the fabric, and it sterilises. Dust mites and mould spores die at sustained temperatures above 60°C. Sweat salt dissolves, and the extractor pulls it out. The seat doesn't just look cleaner, it stops being a biological habitat.
A steam clean every 3 months keeps upholstery in nearly-new condition. Skip it for a year and you're looking at permanent staining and a 10–15% hit to resale value.