# What differentiates Type 5B and Type 6B fabrics in terms of standard compliance?

> Source: https://breathablefilm.com/news/knowledge-center/difference-between-type-5b-and-type-6b-fabric-compliance/
> Author: kh_sales02
> Published: 2026-05-05
> Updated: 2026-08-28

## Key takeaways

- Type 5B (EN ISO 13982-1) protects against solid dust and dry particulates by testing inward leakage of fine dry particles.
- Type 6B (EN 13034) protects against low-intensity liquid chemical sprays and aerosols by testing resistance to liquid droplet penetration.
- Both carry the "B" suffix, meaning each also meets an additional certified biological barrier requirement against infectious agents — the choice between them comes down to whether the primary threat is dry particulates or light liquid splashes.

## Frequently asked questions

### What differentiates Type 5B and Type 6B fabrics in terms of standard compliance?

Type 5B and Type 6B differ by the physical state of the hazard they repel: Type 5B (EN ISO 13982-1) protects against solid dust and dry particulates by testing inward leakage of fine dry particles, while Type 6B (EN 13034) protects against low-intensity liquid chemical sprays and aerosols by testing resistance to liquid droplet penetration. Both carry the B suffix, meaning each also meets an additional certified biological barrier requirement against infectious agents, so the choice between them comes down to whether the primary threat is dry particulates or light liquid splashes.

### What does the "B" suffix mean in both Type 5B and Type 6B?

In both classifications, the "B" suffix confirms the fabric additionally meets a certified biological barrier requirement against infectious agents, on top of the Type 5 (dry particulate) or Type 6 (liquid splash) protection level — so the B suffix is about biological protection, not the physical hazard type itself.