Cleanroom Cleanroom Sticky Mats Contamination Control Wipes

Contamination Control 101: Practical Tactics for ISO 5–8 Cleanrooms

Mar 10, 2026

Quick Answer

Contamination control in ISO 5–8 cleanrooms comes down to five fundamentals: controlling entry points (sticky mats at every door), matching wipe material to ISO class (polyester knit for ISO 5–6; poly-cellulose for ISO 7–8), using residue-free cleaners compatible with your surfaces and ESD requirements, maintaining floors and walls on a documented schedule, and recording every cleaning action for audit traceability. Personnel contamination is the most common cause of particle count excursions — gowning sequence, technique, and location are as critical as the garments themselves. Sticky mats at entry points are the single highest-ROI contamination control investment for most cleanrooms.

Cleanroom sticky mats and boot covers at entry point for ISO contamination control

Simple habits that quietly keep particle counts — and stress — under control.

For a complete guide to cleanroom compliance and contamination control standards, visit our Cleanroom Compliance & Best Practices hub.

Own the Entry Points

Every door matters. Sticky mats at all entries (people and carts) are the single highest-ROI contamination control investment for most cleanrooms — they passively remove particles from footwear and wheels before they enter the controlled space. Place mats at all entries, rotate sheets on a visible schedule, and note changes in the log.

Options: Cleanroom Sticky Mats · 36″ × 60″ Tacky Traxx (HTC)

Match Wipes to the ISO Class

ISO 5–6: polyester knit with sealed edges — low particle generation, chemically inert, compatible with aggressive solvents. ISO 7–8: poly‑cellulose blends are often the best value — higher absorbency at lower cost, suitable for less critical surfaces. Presaturated wipes help with consistency and reduce the risk of over- or under-saturation that causes residue or insufficient cleaning.

Shop: All Cleanroom Wipes · Teknipure Wipes · ESD‑Safe Knit, 9″x9″ (Teknipure)

Use Cleaners That Fit Your Space

In electronics and mixed‑use areas, ESD‑safe and residue‑free cleaners are required — standard cleaning products can leave ionic residues that cause leakage currents on PCBs or fail ionic contamination testing. Standardize which cleaner goes to benches vs. equipment, verify solvent-wipe compatibility before production use, and document the approved combination in your cleaning SOP.

See: Chemicals & Cleaners · Chemtronics (electronics cleaners)

Vileda Professional UltraSpeed Pro cleanroom mop for floor cleaning in ISO-controlled environments

Mops, Walls, and the “Quiet Corners”

Weekly wall and ceiling wipes prevent surprises during particle counts. Particle accumulation on walls and ceilings is a common audit finding that is entirely preventable with a documented schedule. In high‑traffic zones, a self‑wringing cleanroom mop makes quick work of disinfectant application and reduces cross-contamination from mop heads.

Tools: Roll‑O‑Matic Cleanroom Mop · Sterile Duo Microfiber Mop (Vileda)

Document What You Do

Auditors look for documented evidence of a living program — not just a one-time certification. Record who cleaned what, when, with which wipe and chemical. It’s the fastest way to answer audit questions and spot trends before they become excursions. A simple cleaning log with date, operator, area, wipe/chemical used, and sign-off satisfies most ISO 13485 and ANSI/ESD S20.20 documentation requirements.

Supplies: Cleanroom Documentation

Frequently Asked Questions About Cleanroom Contamination Control

What is the most common cause of particle count excursions in cleanrooms?

Personnel contamination is the most common cause of particle count excursions — skin cells, hair, cosmetics, and improper gowning introduce more particles than any other single source in most cleanrooms. The second most common cause is inadequate cleaning frequency or incorrect wipe/cleaner selection that leaves residues or redistributes particles rather than removing them. Both are preventable with proper gowning protocols, correct material selection, and consistent daily cleaning habits.

What wipe material should I use for ISO 5 and ISO 6 cleanrooms?

ISO 5 and 6 cleanrooms require polyester knit wipes with laser-sealed or ultrasonic-sealed edges — sealed edges prevent fiber shedding that would violate the particle count requirements of these classifications. Polyester is chemically inert and compatible with most aggressive solvents used in electronics and pharmaceutical cleaning. Poly-cellulose blends are acceptable for ISO 7 and 8 environments where the higher absorbency is valued and the slightly higher particle generation is within specification.

How often should cleanroom sticky mats be changed?

Sticky mat sheets should be removed when the top sheet is visibly soiled or has lost its tack — typically every shift in high-traffic areas, or daily in lower-traffic environments. The change frequency should be documented in your cleaning log and adjusted based on observed soiling rates. In ISO 5 and 6 cleanrooms, more frequent changes are required. Never allow a mat to become so soiled that it no longer captures particles — a saturated mat can actually transfer contamination rather than remove it.

What documentation is required for cleanroom contamination control?

At minimum, contamination control documentation should include: cleaning schedules (what is cleaned, how often, and with what materials), cleaning logs (date, operator, area, wipe/chemical used, sign-off), particle count records, gowning logs, and supplier certifications for all consumables. For ISO 13485 medical device manufacturing, change control documentation is also required for any change in cleaning materials or procedures. Auditors look for evidence that the program is actively maintained — not just a binder of procedures that was written once and never updated.

Want a Pre‑Built Contamination Control Kit?

We’ll assemble wipes, mats, mops, and cleaners by ISO class. Talk to us.

Related Resources
More from > Cleanroom Cleanroom Sticky Mats Contamination Control Wipes
Back to Blog

Explore more

Share this