EXP1-20L (DT) RE HEPA (MFS)

ATEX II 2GD certifies that the vacuum is built to the ATEX Directive (2014/34/EU) for equipment used in explosive atmospheres. II means it is for industrial use (not mining). 2 means it falls into Category 2, approved for Zone 1/Zone 21 and also covers Zone 2/Zone 22. G means it is approved for gas mixtures; D means it is approved for dust mixtures. In short: this machine can safely operate in environments with both flammable gases and combustible dust.

MFS stands for Manual Filter Shaker. Instead of using a pneumatic or electric mechanism to clean the filter, the operator simply shakes the filter by hand. It saves energy because no additional equipment is needed, and it makes maintenance straightforward — you can discharge particles between work sessions without waiting. For many pharmaceutical processes where frequent product changeovers are normal, MFS is an elegant solution.

It is a Tiger-Vac convention. The model is called EXP1-20L because it sits between smaller and larger sizes, but the actual tank geometry accommodates 25 litres. The correct operating volume is 25 litres — the model name refers to a historical sizing category.

Yes. The EXP1-20L meets ISO Class 4 standards (ISO 14644-1) for cleanroom compatibility. This means its design and operational profile do not contaminate or compromise cleanroom classification. It is therefore suitable for pharmaceutical manufacturing, medical device assembly and other high purity environments.

Below 10 ohms means there is a continuous conductive path from every point in the vacuum to ground. This prevents static electricity from building up on the filter, tank or suction hose — a critical requirement for safe operation in ATEX environments. If static charge accumulates, a spark could ignite vapour or dust clouds. Tiger-Vac’s antistatic design — featuring conductive cloth filters, SD pre-filters, conductive polyliner bags and ESD-safe wheels — ensures this risk is minimized to nearly zero.

ULPA (Ultra Low Penetration Air) H15/U15 achieves 99.9995% filtration efficiency at 0.3 micrometre particles, compared to HEPA’s 99.995%. That is 100 times better. ULPA is standard in some pharmaceutical and medical device facilities where even ultra-fine particles must be removed. As an optional upgrade, you can fit ULPA H15 or U15 to the EXP1-20L without changing the main unit.

EN 17348 is the harmonized European standard for vacuums used in explosive atmospheres. DT stands for "Combustible Dust". EN 17348 certification confirms that the vacuum meets strict requirements for design, motor, filtration efficiency, exhaust temperature and antistatic protection specifically for dust applications. The EXP1-20L meets EN 17348 DT, which means safe recovery of combustible dust.