How to Clean an Air Shower (Step-by-Step Guide)

A cleanroom air shower plays a critical role in contamination control. But like any cleanroom equipment, it must itself be cleaned regularly to work effectively. If dust, particles, or residue build up inside, the air shower loses its efficiency.

Here’s a simple, safe, and effective way to clean an air shower.

Why Cleaning an Air Shower Is Important

Over time, air showers collect:

  • Dust from footwear and clothing

  • Skin flakes and fabric fibers

  • Particles carried in from outside

  • General industrial or lab residue

If these are not removed, they can recirculate inside the chamber, reducing cleanliness instead of improving it.

Step-by-Step Cleaning Process

Step 1: Turn Off the Air Shower

Before cleaning, always switch off the unit from the main control panel. This prevents accidental activation and protects both the equipment and the cleaner.

Step 2: Remove Loose Dust from Surfaces

Use:

  • A clean, soft microfiber cloth

  • Or a vacuum with a HEPA filter

Gently remove visible dust from:

  • Walls

  • Floor

  • Ceiling panels

  • Nozzle areas

Avoid using rough cloths that could scratch surfaces.

Step 3: Clean with Mild Detergent Solution

Prepare a mild cleaning solution:

  • Lukewarm water

  • Small amount of neutral detergent (non-abrasive)

Wipe:

  • Stainless steel walls

  • Acrylic or glass doors

  • Floor surface

Do not pour water directly inside the air shower. Always use a damp cloth, not a dripping one.

Step 4: Clean the Floor and Drain Area

Most air showers have a floor with grooves or a drain area.

  • Remove collected dirt manually

  • Wipe with disinfectant (if required in your facility)

  • Ensure no water remains standing

Step 5: Check and Clean Nozzles

Air nozzles can get clogged with dust.

  • Gently wipe the outer surface of the nozzles

  • Do not insert objects inside them unless recommended by your Air Shower Supplier

Step 6: Filter Inspection (Periodic Maintenance)

The HEPA filter inside a cleanroom air shower should not be cleaned manually.

Instead:

  • Check pressure gauge (if installed)

  • Look for reduced airflow

  • Contact your Air Shower Supplier for filter replacement when needed

Typically, HEPA filters need replacement every 6–12 months, depending on usage.

Step 7: Final Wipe & Dry

Use a clean, dry cloth to remove any remaining moisture.

Make sure:

  • No wet spots remain

  • Doors close properly

  • Floor is completely dry

Then switch the air shower back on.

How Often Should You Clean an Air Shower?

Recommended cleaning frequency:

  • Daily light cleaning: Wipe surfaces

  • Weekly deep cleaning: Walls, floor, nozzles

  • Monthly maintenance check: Airflow, doors, sensors

  • 6–12 months: HEPA filter replacement (via supplier)

Common Mistakes to Avoid

❌ Using harsh chemicals or bleach
❌ Spraying water directly inside the chamber
❌ Ignoring filter condition
❌ Cleaning while the air shower is running

Final Thought

A clean air shower ensures that your cleanroom air shower actually keeps contaminants out rather than spreading them inside. Regular cleaning, along with proper maintenance from a reliable Air Shower Supplier, keeps your system effective, compliant, and long-lasting.

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