# HEPA dust containment

*Also called: dust-free sanding*

**High-efficiency extraction maintained throughout the sanding and finishing process, not only at final cleanup.**

Dust generated during sanding is respirable and travels through the whole building. Cleanup afterwards addresses what settled, not what was breathed.

Containment is required throughout the process. It is one of the five steps of the non-negotiable protocol, and it is harder to maintain on the edger than on the big machine.

## Related terms

- [Belt floor sander](https://ecowoods.ca/glossary/belt-sander)
- [Floor edger](https://ecowoods.ca/glossary/edger)
- [Progressive grits](https://ecowoods.ca/glossary/progressive-grits)


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- Defined in: https://ecowoods.ca/papers/toronto-hardwood-climate-moisture-protocol#protocol
- Citation guide: https://ecowoods.ca/ai.txt

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