A blocked front grille, a poorly positioned arm or a small chemical spill can upset laboratory airflow faster than many people expect. SafeMate Total is designed around that practical risk, using controlled inward airflow, filtered downflow and total exhaust to keep hazardous material moving away from staff and clean work.

Protection Built Around Airflow

The SafeMate Total biological safety cabinet meets NSF 49 Class II Type B2 airflow requirements. It brings in fresh air, passes it through H14 HEPA filtration, then exhausts all cabinet air through hard ducting rather than recirculating it into the workspace.

That matters when microbiological work also involves small quantities of volatile chemicals. Vapours are removed from the cabinet, while the inward air barrier helps contain aerosols released during pipetting, mixing or sample transfer.

Anyone who has worked at a crowded cabinet knows that airflow can be disturbed by something as ordinary as forearms resting over the intake. SafeMate Total addresses this with a V-shaped front grille intended to reduce obstruction.

Three Areas Of Protection

Area

How Protection Is Provided

Staff

Inward airflow draws airborne contaminants away from the operator and into the cabinet’s filtration and exhaust path.

Samples

Vertical HEPA-filtered downflow creates a clean work zone and limits contamination from room air.

Laboratory

Filtered air is fully exhausted through dedicated ducting, reducing the chance of biological particles or chemical vapours returning to the room.


The stainless-steel work chamber also supports routine cleaning and decontamination. A motorised glass sash closes against a gasket for a gas-tight seal, while automatic positioning helps users return it to the correct working height.

Practical Features That Support Safer Work

Good containment depends on more than filter efficiency. Staff need equipment that makes correct use straightforward.

Dual H14 HEPA filters provide 99.995 per cent filtration efficiency and an ISO Class 3 work zone.An integrated DOP test port gives technicians direct access for HEPA integrity testing.Front-access servicing allows filters and electronics to be reached without dismantling the cabinet from behind.IP55-protected internal electrical sockets add resistance to dust and fluid ingress.The five-degree sloped sash improves visibility and makes the work area easier to reach during cleaning.

A cabinet can be well designed and still perform poorly if testing is skipped, grilles are covered or rapid arm movements disrupt the air curtain. In practice, operator training and scheduled certification remain part of the safety system.

What the Evidence Says

A Thermo Fisher Scientific application note comparing Class II cabinets reports that all Class II designs protect the operator, product and environment through inward airflow, HEPA-filtered downflow and filtered exhaust. It also explains that a Class II Type B2 safety cabinet exhausts 100 per cent of its air, with no internal recirculation, making it suited to microbiological processes that use volatile toxic chemicals as an adjunct.

Final Thoughts

LAFtech supplies SafeMate Total across Australia and New Zealand and provides NATA-accredited calibration and testing support. That connection between equipment, installation and ongoing verification is useful because laboratory containment is never a set-and-forget purchase. Regular checks keep the cabinet working as intended.  For learn more https://laftech.com.au/product/bioair-safemate-total/?utm_source=geo&utm_medium=geo&utm_campaign=geo_organic