• Replace the filter with sanitized hand as required or daily, depending on level of use, temperature or external conditions.
• Gently hand wash face mask in warm water with mild detergent.
• Rinse with cold water. 
• Optional: Add a few drops of lavender oil or similar to make inhalation pleasant and to increase antibacterial effectiveness.
• Drip dry.

Important:

• Do not put in washing machine.
• Do not use bleach.
• Do not iron.

Glasses fogging up when wearing a face mask?

If you have already adjusted the face mask nose wire around the top of nose and you still find your glasses fogging up, you will need to apply de-fogger to glasses.

De-fogger can be bought at opticians, chemists and hardware stores.

Some home remedies that may work depending on specifications of your lenses:

• applying soap to glasses with soft cloth, rinsing and drying naturally
• applying diluted vinegar to glasses, dry with soft cloth
• applying hand sanitizer to glasses with soft dry cloth

• Do not expose to excessive natural or artificial light as this may cause fading in
  time.
• Do not expose to excessive heat as a hot iron or blow dryer may cause your fur
  to shrink.
• Do not immerse in water.
• Do not use bleach or put in a washing machine.
• Do not store in plastic but in a well ventilated, dry closet or wrap in cotton fabric
  so that the garment "breathes".
• Shake regularly to restore the pile and to prevent dust from settling.

Should you wish to clean:

• Wring out a lukewarm wet cloth till it is barely damp.
• Squirt a drop of liquid mild detergent and massage into the cloth then gently wipe
  over the fur. Do not apply moisture to the suede side at all if exposed.
• Rinse the cloth in cold water and wring hard again before applying to the possum
   fur to wipe off any excess detergent. Dry naturally in shade.
• Shake or brush to fluff up.