Working in Pharmaceutical Manufacturing: Cleanroom Basics

Pharmaceutical manufacturing takes place under some of the strictest conditions of any industry. Cleanroom environments control particles, temperature, humidity, and air pressure to ensure medicines are made safely. If you can adapt to the discipline required, pharma manufacturing offers excellent pay and job security.

What Is a Cleanroom?

A cleanroom is a controlled environment where the concentration of airborne particles is kept within strict limits. Cleanrooms are classified by how many particles per cubic metre are permitted:

• Grade A — the strictest. Used for high-risk operations like filling vials. Virtually particle-free
• Grade B — the background environment for Grade A zones
• Grade C and D — less critical manufacturing steps. Most production operative roles work in these grades

The Gowning Procedure

Every time you enter a cleanroom, you must follow a precise gowning procedure. This typically takes 10-15 minutes and includes:

1. Remove all jewellery, watches, and personal items in the changing room
2. Wash and sanitise hands thoroughly
3. Put on cleanroom underwear or scrubs
4. Step over the bench to the clean side (one foot at a time, never touching the floor on the dirty side with a clean foot)
5. Put on cleanroom hood, covering all hair
6. Put on face mask
7. Put on cleanroom coverall, tucking hood in
8. Put on cleanroom boots
9. Put on first pair of gloves, tucking under coverall cuffs
10. Enter the airlock — air shower removes remaining particles
11. Put on second pair of sterile gloves

This is not optional. Missing any step means going back to the start.

GMP — Good Manufacturing Practice

GMP is the set of regulations that governs pharmaceutical production. Key principles that affect daily work:

• Document everything — if it is not written down, it did not happen
• Follow SOPs (Standard Operating Procedures) exactly — no shortcuts, no improvisation
• Clean and sanitise to schedule — surfaces, equipment, and tools must be cleaned regularly
• Report deviations immediately — anything that does not follow the SOP must be recorded and investigated
• Double-check everything — line clearance, batch numbers, quantities, and labels are all verified by two people

What Pharma Manufacturing Roles Involve

• Production operatives — operating filling machines, tablet presses, and packaging lines
• Cleanroom operatives — sterile manufacturing of injectable medicines
• Quality control — testing samples to confirm they meet specifications
• Warehousing — specialist pharmaceutical warehouse with temperature mapping and audit trails
• Equipment cleaning — thorough validated cleaning between product batches

Pay and Conditions

Pharmaceutical manufacturing roles typically pay:

• Production operatives — £13.00-£16.00/hour (agency), £26,000-£32,000 (permanent)
• Cleanroom specialists — £15.00-£20.00/hour (agency), £30,000-£38,000 (permanent)
• Quality control — £28,000-£38,000 (permanent)

The work requires discipline and attention to detail, but the environment is temperature-controlled, clean, and safe. If you come from food manufacturing, the transition to pharma is natural — GMP and food safety have many parallels.

TRS Recruit places workers in pharmaceutical and medical device manufacturing facilities across the South West. Contact us to learn about current opportunities.