Powder Weighing Enclosure
Powder Weighing & Containment

Powder Weighing Enclosure

Weigh hazardous and nuisance powders safely, without disturbing the balance. Steady, filtered airflow keeps particulates off the operator and holds the still air an analytical balance needs to read accurately.

Protects
Operator and the weighing
Filtration
Twin HEPA, recirculating
Airflow
Auto speed, low-flow alarm
Fits
Analytical balances

Safe, accurate weighing of powders and fine particulates. Pharmaceutical and QC weighing, compounding and dispensing, research and formulation, sample preparation, and handling of sensitising or nuisance powders.

Pharmaceutical & QC Compounding Research & formulation Sample prep Fine chemicals
The weighing problem

The two things that fight each other when you weigh a powder

Weighing an open powder pulls in two directions at once. You need airflow to keep fine particulates off the operator and out of the room, but an analytical balance reading to four decimal places needs still, undisturbed air. Too little airflow and the operator is exposed. Too much or too turbulent, and the balance will not settle.

The Fumecare enclosure is built to hold both at once. Low-noise DC fans with automatic speed control keep the face airflow steady and turbulence-free, so powders are contained while the balance sits in stable air, and twin HEPA filters capture the particulates before clean air is recirculated to the room.

  • ✓Keeps powders and particulates contained during weighing
  • ✓Steady, low-turbulence airflow so the balance reads accurately
  • ✓Twin HEPA filters with clean air recirculated, no ducting required
  • ✓Interior easily accommodates analytical balances

Standard on every enclosure

The full airflow, filtration and control package.

Twin HEPA filtersLow-noise DC fansAuto speed controlDigital airflow displayLow-flow alarmLow-level LED lighting
Dual protection

Protects the operator, and protects the result

A good weighing enclosure has to do two jobs at the same time. This one is designed around both.

The operator

Airflow drawn across the open face keeps fine powders inside the enclosure and out of the breathing zone. Twin HEPA filters capture the particulates, so what returns to the room is clean, protecting the person weighing from hazardous and nuisance powders alike.

The weighing

Low-noise DC fans with automatic speed control hold the airflow steady and turbulence-free, so drafts do not push the reading around. The analytical balance sits in still, stable air and settles quickly, giving you a reading you can trust.

A digital airflow display shows the face velocity at a glance, and a low-flow alarm warns the moment protection drops below where it should be.
Where it's used

Wherever a powder has to be weighed safely and accurately

Many of the powders labs weigh every day are sensitisers, irritants or potent compounds. The enclosure lets them be handled without exposing the operator or the room.

Pharmaceutical & QC weighing

Weigh active ingredients, excipients and reference standards in quality control and manufacturing, with the operator protected and the balance stable.

Compounding & dispensing

Prepare and dispense powdered formulations safely, containing the material at the point it is handled rather than letting it drift across the bench.

Research & formulation

Develop and trial formulations where small quantities of fine or potent powder are weighed repeatedly and accuracy matters.

Sample preparation

Weigh out samples for analysis in a contained space, keeping cross-contamination and operator exposure down through the prep step.

Sensitising & potent powders

Handle irritant, sensitising or otherwise hazardous powders with the containment and HEPA capture that keeps them off the operator.

Fine chemicals & pigments

Weigh speciality chemicals, additives and pigments where fine dust is a nuisance and a contamination risk if it escapes the enclosure.

Key features

Everything the job needs, built in

Twin HEPA filtration

Two HEPA filters capture fine particulates from the extracted air, so the powders you weigh do not leave the enclosure with the airflow.

Low-noise DC fans

Quiet DC fans keep the enclosure comfortable to work at for long weighing sessions, without the drone of a conventional blower.

Automatic speed control

The fans adjust automatically to hold a steady face velocity, keeping containment consistent and the air over the balance stable as filters load.

Digital airflow display

A clear digital display shows the airflow, so the operator can see at a glance that the enclosure is protecting as it should before starting.

Low-flow alarm

If the airflow drops below the safe level, the alarm warns the operator immediately, so weighing never continues on compromised containment.

Low-level LED lighting

LED lighting at low level illuminates the work surface and the balance display clearly, without glare across the operator's view.

Fits analytical balances

The interior easily accommodates analytical balances, so your existing instrument sits inside with room to work around it.

Ductless, recirculating

Clean air is recirculated to the room, so the enclosure needs no ducting to atmosphere and can go wherever the weighing is done.

Sizes

One standard size, or built to yours

The standard enclosure is sized to take an analytical balance with room to work. Where a larger instrument or a specific bench space needs it, we build to a custom size. Full dimensions and datasheet available on request.

Get a quote

Tell us the powders and the balance

Send us what you're weighing and the instrument you use, and we'll come back with a specification and price, typically within four working hours.

Your requirements

Contact details

Or email us directly at office@fumecare.com