Blood Stains on Office Chairs

When blood stains are found on office chairs, they should be treated with cold water immediately. Avoid using hot water and choose an appropriate cleaning method based on the material and the age of the blood stains.

General First-Aid Steps

1. Immediate Blotting/Rinsing: Use clean paper towels or a dry cloth to blot away excess blood from the surface. For fabric chair surfaces, rinse the stain from the back with running cold water to prevent the stain from spreading.
2. Cold Water Soaking: Soak the stained area in cold water for 10 - 30 minutes. For old blood stains, extend the soaking time to 2 hours, gently rubbing the edges during this period.
3. Gentle Detergent Cleaning: Use a mild detergent, soap, or an enzyme-based cleaner (such as enzyme-containing laundry detergent) to gently scrub. Enzymes can effectively break down the proteins in blood.
4. Thorough Drying: After cleaning, ensure the chair is completely dry to prevent bacteria growth due to moisture.

Cleaning by Material

• Leather Chairs: Use a slightly damp soft cloth dipped in a mild detergent to gently wipe the blood-stained area, avoiding excessive wetness. For stubborn stains, try a small amount of medical alcohol (test in an inconspicuous area first) or a specialized leather cleaner. After cleaning, dry with a towel and apply leather conditioner for maintenance.
• Mesh/Fabric Chairs: Soak in cold water or rinse repeatedly to prevent blood from clotting. Use soapy water or an enzyme-containing detergent to gently scrub, avoiding damage to the fabric fibers. You can also vacuum first, then spray diluted cleaner and let it sit to decompose the stains.

Treatment of Old or Stubborn Blood Stains

Extend the cold water soaking time to 2 hours. Use a proteinase-containing cleaner and let it sit for 10 - 15 minutes, then gently brush with a soft-bristled brush. For white or light-colored, bleach-resistant fabrics, apply a small amount of 3% medical hydrogen peroxide (test for colorfastness first). You can also use cold salt water, diluted white vinegar, or a baking soda paste for local treatment.

Special Scenario Treatment

If the blood has dried for more than 20 days, first spray alcohol to decompose the blood stains and wait for 5 minutes. Then use a collar cleaner for further decomposition, brush, and let it sit for half an hour. Next, scrub repeatedly with a wet brush for 2 - 3 minutes and wipe the chair surface with a damp cloth. Pour color-safe bleach onto a water-soaked cloth and apply it to the blood stains for half an hour (extend if not removed). Finally, wipe repeatedly with a clean damp cloth to remove any residual cleaner.

Before cleaning, test the cleaner in an inconspicuous area to avoid color fading or material damage. Avoid using alkaline cleaners that can damage the leather surface. After cleaning, ensure thorough drying to prevent the internal sponge from getting damp.